List of first appearances/Preboot

Lists of the first appearances of recurring characters, equipment and Legion-related concepts in the Preboot family of eras. Planets and settings can be found listed separately at List of worlds/Preboot.

Legionnaires

	First appearance	Legion membership	Origin
Blok	Superboy and the Legion of Super-Heroes #253, Jul 1979	Legion of Super-Heroes v2 #272, Feb 1981	Legion of Super-Heroes v2 #272, Feb 1981
Bouncing Boy	Action Comics v1 #276, May 1961	Action Comics v1 #276, May 1961 (Applies) Adventure Comics #301, Oct 1962 (Joins prior to issue) Adventure Comics #321, Oct 1962 (Loses powers)	Superman v1 Annual #4, 1962 (Brief details) Adventure Comics #301, Oct 1962 (Full story)
Brainiac 5	Action Comics v1 #276, May 1961	Action Comics v1 #276, May 1961 (Joins)	Action Comics v1 #276, May 1961 (Brief details) Adventure Comics #335, Aug 1965 (Further details)
Chameleon Boy	Action Comics v1 #267, Aug 1960	Action Comics v1 #267, Aug 1960 (Joins prior to issue)	Superman v1 Annual #4, 1962 (Brief details)
Chameleon Girl
Chemical Kid	Adventure Comics #523, Apr 2011	Legion of Super-Heroes v7 #1, Nov 2011 (Joins prior to issue)
Chemical King	Adventure Comics #354, Mar 1967	Adventure Comics #372, Sep 1968 (Joins) Superboy v1 #228, Jun 1977 (Dies)	Adventure Comics #371, Aug 1968
Colossal Boy	Action Comics v1 #267, Aug 1960	Action Comics v1 #267, Aug 1960 (Joins prior to issue)	Superman v1 Annual #4, 1962 (Brief details)
Comet Queen	Legion of Super-Heroes v2 #304, Oct 1983	Legion of Super-Heroes v3 #14, Sep 1985 (Applies)
Cosmic Boy	Adventure Comics #247, Apr 1958	Superboy v1 #147, May/Jun 1968 (Co-Founder)	Superman v1 Annual #4, 1962 (Brief details)
Dawnstar	Superboy v1 #226, Apr 1977	Superboy v1 #226, Apr 1977
Dragonwing	Adventure Comics #523, Apr 2011	Legion of Super-Heroes v7 #1, Nov 2011 (Joins prior to issue)
Dream Girl	Adventure Comics #317, Feb 1964	Adventure Comics #317, Feb 1964 (Joins, resigns)
Duo Damsel a.k.a. Triplicate Girl, Una, Duplicate Girl	Action Comics v1 #276, May 1961 (Triplicate Girl) Adventure Comics #341, Feb 1966 (Duo Damsel)	Superboy v1 #147, May/Jun 1968 (Joins)	Superman v1 Annual #4, 1962 (Brief details)
Earth Man a.k.a. Absorbancy Boy
Element Lad	Adventure Comics #307, Apr 1963 (Mystery Lad) Adventure Comics #307, Apr 1963 (Element Lad)	Adventure Comics #307, Apr 1963 (Joins)	Adventure Comics #307, Apr 1963
Ferro Lad	Adventure Comics #346, Jul 1966	Adventure Comics #346, Jul 1966 (Joins)
Gates
Glorith	Adventure Comics #338, Nov 1965 (Time-Trapper assistant) Adventure Comics #523, Apr 2011 (Academy student/Legionnaire)	Legion of Super-Heroes v7 #1, Nov 2011 (Joins prior to issue)
Invisible Kid (Jacques Foccart)	Legion of Super-Heroes v2 Annual 1, 1982	Legion of Super-Heroes v2 Annual 1, 1982	Legion of Super-Heroes v2 Annual 1, 1982
Invisible Kid (Lyle Norg)	Action Comics v1 #267, Aug 1960	Action Comics v1 #267, Aug 1960 (Joins prior to issue) Superboy v1 #203, Jul/Aug 1974 (Dies)	Superman v1 Annual #4, 1962 (Brief details)
Karate Kid	Adventure Comics #346, Jul 1966	Adventure Comics #346, Jul 1966 (Joins)	Superboy v1 #210, Aug 1975
Kid Psycho	Superboy v1 #125, Dec 1965	Superboy v1 #125, Dec 1965 (Joins) Crisis on Infinite Earths #3 (Dies)	Superboy v1 #125, Dec 1965
Light Lass a.k.a. Lightning Lass	Adventure Comics #308, May 1963 (Lightning Lass) Adventure Comics #317, Feb 1964 (Light Lass)	Adventure Comics #308, May 1963 (Joins) Adventure Comics #317, Feb 1964 (Powers change)	Adventure Comics #308, May 1963
Lightning Lad a.k.a. Lightning Boy	Adventure Comics #247, Apr 1958 (Lightning Boy) Adventure Comics #267, Dec 1959 (Lightning Lad)	Superboy v1 #147, May/Jun 1968 (Co-Founder) Adventure Comics #304, Jan 1963 (Dies) Adventure Comics #312, Sep 1963 (Revived)	Superman v1 #147, Aug 1961 Adventure Comics #308, May 1963 (New details)
Magnetic Kid		Legion of Super-Heroes v3 #14, Sep 1985 (Joins)
Matter-Eater Lad	Adventure Comics #303, Dec 1962	Adventure Comics #303, Dec 1962 (Joins)	Adventure Comics #303, Dec 1962
Mon-El a.k.a. Valor	Superboy v1 #89, Jun 1961 (Mon-El) Adventure Comics #305, Feb 1963 (Legionnaire Lemon) Adventure Comics #305, Feb 1963 (Marvel Lad) Legion of Super-Heroes v4 #6, Apr 1990 (Valor)	Adventure Comics #293, Dec 1962 (First interaction with LSH) Adventure Comics #300, Sep 1962 (Joins for short term missions) Adventure Comics #305, Feb 1963 (Joins full time)	Superboy v1 #89, Jun 1961
Phantom Girl a.k.a. Phase	Action Comics v1 #276, May 1961	Superboy v1 #147, May/Jun 1968 (Joins)	Superman v1 Annual #4, 1962 (Brief details)
Polar Boy	Adventure Comics #304, Jan 1963 (Proposed by reader) Adventure Comics #306, Mar 1963 (First appears)	Adventure Comics #306, Mar 1963 (Applies) Legion of Super-Heroes v3 #14, Sep 1985 (Joins)
Princess Projectra a.k.a. Sensor Girl	Adventure Comics #346, Jul 1966 (Princess Projectra) Legion of Super-Heroes v3 #14, Sep 1985 (Sensor Girl)	Adventure Comics #346, Jul 1966 (Joins)
Quislet	Legion of Super-Heroes v3 #14, Sep 1985	Legion of Super-Heroes v3 #14, Sep 1985 (Joins)
Saturn Girl	Adventure Comics #247, Apr 1958	Superboy v1 #147, May/Jun 1968 (Co-Founder)	Superman v1 Annual #4, 1962 (Brief details)
Shadow Lass	Adventure Comics #354, Mar 1967 (Adult Legion cameo) Adventure Comics #365, Feb 1968 (First full appearance)	Adventure Comics #366, Mar 1968 (Joins)
Shrinking Violet	Action Comics v1 #276, May 1961	Action Comics v1 #276, May 1961 (Applies) Adventure Comics #300, Sep 1962 (Joins prior to issue)	Superman v1 Annual #4, 1962 (Brief details)
Star Boy	Adventure Comics #282, Mar 1961	Action Comics v1 #267, Aug 1960 (Joins between panels) Adventure Comics #282, Mar 1961 (Joins in flashback)	Adventure Comics #282, Mar 1961
Sun Boy	Action Comics v1 #276, May 1961	Action Comics v1 #276, May 1961 (Applies) Adventure Comics #290, Nov 1961 (Joins prior to issue)	Adventure Comics #290, Nov 1961 (Brief details) Superman v1 Annual #4, 1962 (Brief details) Adventure Comics #302, Nov 1962 (Name is Dirk Morgna)
Superboy (Kal-El)	Action Comics v1 #1, Jun 1938 (Superman) More Fun Comics #101, Jan/Feb 1945 (Superboy)	Adventure Comics #247, Apr 1958 (Joins)	Action Comics v1 #1, Jun 1938
Supergirl	Action Comics v1 #252, May 1959	Action Comics v1 #267, Aug 1960 (Applies) Action Comics v1 #276, May 1961 (Joins)	Action Comics v1 #252, May 1959
Tellus		Legion of Super-Heroes v3 #14, Sep 1985 (Joins)
Timber Wolf a.k.a. Lone Wolf	Adventure Comics #327, Dec 1964(Lone Wolf) Adventure Comics #372, Sep 1968 (Timber Wolf)	Adventure Comics #372, Sep 1968	Adventure Comics #327, Dec 1964
Tyroc	Superboy v1 #216, Apr 1976	Superboy v1 #218, Jul 1976
Ultra Boy	Superboy v1 #98, Jul 1962	Superboy v1 #98, Jul 1962 (Joins)	Superboy v1 #98, Jul 1962
Wildfire a.k.a. ERG-1	Superboy v1 #195, Jun 1973 (ERG-1) Superboy v1 #202, May/Jun 1974 (Wldfire)	Superboy v1 #195, Jun 1973 (Applies, "dies") Superboy v1 #202, May/Jun 1974 (Joins)	Superboy v1 #195, Jun 1973
White Witch a.k.a. The Hag, Black Witch	Adventure Comics #350, Nov 1966 (The Hag) Adventure Comics #351, Sep 1968 (White Witch) Final Crisis: Legion of Three Worlds #5 (Black Witch)
XS

Legion of Substitute Heroes

	First appearance	Subs membership	Origin
Chlorophyll Kid	Adventure Comics #306, Mar 1963	Adventure Comics #306, Mar 1963	Adventure Comics #306, Mar 1963
Fire Lad	Adventure Comics #306, Mar 1963	Adventure Comics #306, Mar 1963	Adventure Comics #306, Mar 1963
Night Girl	Adventure Comics #306, Mar 1963	Adventure Comics #306, Mar 1963	Adventure Comics #306, Mar 1963
Polar Boy	Adventure Comics #306, Mar 1963	Adventure Comics #306, Mar 1963	Adventure Comics #306, Mar 1963
Stone Boy	Adventure Comics #306, Mar 1963	Adventure Comics #306, Mar 1963	Adventure Comics #306, Mar 1963

Villains and Adversaries

• Brain Globes of Rambat - Adventure Comics #293, Feb 1962
• Cosmic King - Superman v1 #147, Aug 1961 (and origin)
• Kranyak - Adventure Comics #302, Nov 1962
• Lex Luthor - Superboy v1 #86, Jan 1961 (First interaction with the Legion)
  • First appearance - Action Comics v1 #23, Apr 1940
• Lightning Lord - Superman v1 #147, Aug 1961 (and origin)
• Mask Man/Mxyzptlk V - Adventure Comics #310, Jul 1963
• Meglaro - Adventure Comics #303, Dec 1962
• Monster Master (a.k.a. Jungle King) - Adventure Comics #309, Jun 1963
• Roxxas - Adventure Comics #307, Apr 1963
• Saturn Queen - Superman v1 #147, Aug 1961 (and origin)
• Urthlo - Adventure Comics #300, Sep 1962
• Zaryan the Conqueror - Adventure Comics #304, Jan 1963
• Unnamed living electrical energy creature - Adventure Comics #308, May 1963

Supporting Characters

• Beppo the Supermonkey - Adventure Comics #293, Feb 1962 (first interaction with the Legion)
• Comet the Superhorse - Adventure Comics #293, Feb 1962 (first interaction with the Legion)
• Krypto the Superdog - Adventure Comics #267, Dec 1959 (first interaction with the Legion)
  • Adventure Comics #210, Mar 1955 (first appearance)
• Lori Lemaris - Adventure Comics #304, Jan 1963 (first interaction with Legion)
• Marla Latham - Superboy v1 #98, Jul 1962
• Pete Ross - Superboy v1 #98, Jul 1962 (first interaction with the Legion)
  • First appearance - Superboy v1 #86, Jan 1961 (no Legion interaction)
• Proty/Proty I - Adventure Comics #308, May 1963
  • Adventure Comics #312, Sep 1963 (Dies)
• Streaky the Supercat - Adventure Comics #293, Feb 1962 (first interaction with the Legion)
• Whizzy the Supercat - Action Comics v1 #287, Apr 1962
• Zynthia - Adventure Comics #282, Mar 1961

Rejected Applicants

• Antennae Boy - Adventure Comics #305, Feb 1963
• Dynamo Kid - Adventure Comics #305, Feb 1963
• Jungle King - Adventure Comics #309, Jun 1963
• Lester Spiffany - Adventure Comics #301, Oct 1962
• Rainbow Girl - Adventure Comics #309, Jun 1963
• Storm Boy - Adventure Comics #301, Oct 1962
• Unnamed applicant ADV307A who can temporarily turn objects green - Adventure Comics #307, Apr 1963
• Unnamed applicant ADV307B whose eye can project anything he has seen - Adventure Comics #307, Apr 1963

Other Characters

• Ak Aru, wise elder scientist on the Doll World - Adventure Comics #310, Jul 1963
• Commander Loring of the World-Wide Police - Adventure Comics #304, Jan 1963
• Dez-Nu, animal training expert and father of Jungle King/Monster Master - Adventure Comics #309, Jun 1963
• Donald Mace, photographer in Smallville - Superboy v1 #98, Jul 1962
• Dr. Landro, famous Martian specialist in fourth-dimensional surgery - Adventure Comics #303, Dec 1962
• E.W. Lemley, bank manager of a Smallville bank who has a weak heart - Superboy v1 #98, Jul 1962
• Jon Arkol, scientist attempting to create a super-tough metal - Adventure Comics #308, May 1963
• Lon Duryal, head scientist at an android factory - Action Comics v1 #287, Apr 1962
• Professor Harding, entomologist who visits the Legion and presents them with a gift of insects from many planets - Adventure Comics #302, Nov 1962
• Tom Tanner, Clark Kent lookalike who runs away from reform school - Adventure Comics #290, Nov 1961
• Unnamed criminal impersonating Sun Boy - Adventure Comics #290, Nov 1961
• Unnamed Science Police Commissioner - Adventure Comics #308, May 1963

Alien Wildlife

• Borlat - Adventure Comics #309, Jun 1963
• Drill Beast - Adventure Comics #309, Jun 1963
• Earthquake Beast - Adventure Comics #309, Jun 1963
• Energy-Beast - Superboy v1 #98, Jul 1962
• Eye Monster - Adventure Comics #309, Jun 1963
• Gas creature - Adventure Comics #309, Jun 1963
• Hydra-headed monster - Adventure Comics #304, Jan 1963
• Hypno-beast - Adventure Comics #302, Nov 1962
• Infinite Monster - Action Comics v1 #285, Feb 1962
• Kryptonian Flame-Beast - Adventure Comics #302, Nov 1962 (First Legion appearance)
• Metal monsters - Superman v1 Annual #4, 1962 (mentioned)
• Mirror Monster - Adventure Comics #309, Jun 1963
• Negative Creature - Action Comics v1 #287, Apr 1962
• Omnibeast - Adventure Comics #309, Jun 1963
• Parakat - Adventure Comics #282, Mar 1961
• Positive Man - Action Comics v1 #287, Apr 1962
• Radiation-Beast - Adventure Comics #302, Nov 1962
• Sirian phantom beast - Adventure Comics #308, May 1963
• Space-serpents - Adventure Comics #312, Sep 1963
• Super-spinner beast - Adventure Comics #309, Jun 1963
• Sun-Eater - Adventure Comics #305, Feb 1963 (lesser form)
• Taroc - Adventure Comics #312, Sep 1963
• Vegan living top - Adventure Comics #308, May 1963
• Winged Wampus - Adventure Comics #305, Feb 1963

Adult Legion

• Chameleon Man - Action Comics v1 #289, Jun 1962
• Cosmic Man - Superman v1 #147, Aug 1961
• Lightning Man - Superman v1 #147, Aug 1961
• Phantom Woman - Action Comics v1 #289, Jun 1962
• Saturn Woman - Superman v1 #147, Aug 1961
• Sun Man - Action Comics v1 #289, Jun 1962
• Triplicate Woman - Action Comics v1 #289, Jun 1962

Groups

• Adult Legion - Superman v1 #147, Aug 1961
• Legion of Substitute Heroes - Adventure Comics #306, Mar 1963
• Legion of Super-Heroes - Adventure Comics #247, Apr 1958
  • Origin - Superboy v1 #147, May/Jun 1968
• Legion of Super-Monsters - Adventure Comics #309, Jun 1963
• Legion of Super-Outlaws - Action Comics v1 #283, Dec 1961
• Legion of Super-Pets - Adventure Comics #293, Dec 1962 (Founded)
• Legion of Super-Villains - Superboy v1 #86, Jan 1961 (First mentioned)
  • First appearance - Superman v1 #147, Aug 1961
• Science Council - Adventure Comics #301, Oct 1962
• Science Police
  • Interplanetary Police - Action Comics v1 #287, Apr 1962
  • Galactic Patrol - Superboy v1 #98, Jul 1962
  • Science Police/Science Police Commission - Adventure Comics #303, Dec 1962
  • Space Police - Adventure Comics #305, Feb 1963
  • World-Wide Police - Adventure Comics #300, Sep 1962
• Trylop Council of the planet Mernl - Adventure Comics #304, Jan 1963

Relationships

• Brainiac 5/Supergirl - Action Comics v1 #276, May 1961
• Cosmic Boy/Night Girl - Adventure Comics #311, Aug 1963
• Lightning Lad/Saturn Girl - Action Comics v1 #289, Jun 1962 (Adult Legion)
  • Adventure Comics #304, Jan 1963
• Phantom Girl/Ultra Boy - Adventure Comics #316, Jan 1964

Technology, Equipment and Facilities

• 3-D television - Action Comics v1 #287, Apr 1962
• 3-D projector - Adventure Comics #305, Feb 1963
• Chemically manufactured android men - Action Comics v1 #287, Apr 1962
• Anti-gravity space suit - Adventure Comics #304, Jan 1963
• Anti-spying indicator - Adventure Comics #303, Dec 1962
• Atomic gun - Adventure Comics #282, Mar 1961
• Automatic digging machines - Adventure Comics #311, Aug 1963
• Clubhouse force-shield - Adventure Comics #301, Oct 1962
• Cosmic-Scope - Superboy v1 #98, Jul 1962
• Cyclops the Robot - Adventure Comics #290, Nov 1961
• Disguise-illusion projectors - Adventure Comics #311, Aug 1963
• Dupli-writing stylus - Adventure Comics #301, Oct 1962
• Earth-tube express-car - Adventure Comics #303, Dec 1962
• Enlarging ray - Adventure Comics #303, Dec 1962
• Flight belt/anti-gravity belt - Superman v1 #147, Aug 1961 (Lex Luthor receives Anti-gravity belt from LSV)
  • First used by Legionnaires - Adventure Comics #300, Sep 1962 (also called anti-gravity belt, flying belt)
• Flight ring - Adventure Comics #329, Feb 1965
• Flying platform - Adventure Comics #302, Nov 1962
• Force-shield helmet - Superman v1 #147, Aug 1961 (Lex Luthor receives from LSV)
• Force vortex - Adventure Comics #311, Aug 1963
• Fourth-dimensional forceps - Adventure Comics #303, Dec 1962
• Freeze-pills - Adventure Comics #303, Dec 1962
• Freeze-ray projector - Adventure Comics #302, Nov 1962
• Futurescope - Also called the Futurescope-Recorder, Adventure Comics #267, Dec 1959
• Guilt-detector - Adventure Comics #303, Dec 1962
• Helmet radio - Adventure Comics #307, Apr 1963
• Intra-dimensional lens - Adventure Comics #293, Feb 1962
• Planetary Invisibility-force shield - Adventure Comics #308, May 1963
• Jet pack - Adventure Comics #247, Apr 1958
• Legion clubhouse - Adventure Comics #247, Apr 1958
• Legion plane - Adventure Comics #301, Oct 1962
• Legion space-ship - Adventure Comics #308, May 1963
• Matter-destroyers - Adventure Comics #311, Aug 1963
• Mechanical-librarian computer - Adventure Comics #312, Sep 1963
• Medallion manufacturing machine - Adventure Comics #304, Jan 1963
• Mind-helmets - Adventure Comics #303, Dec 1962
• Mind-picture chair - Action Comics v1 #287, Apr 1962
• One-man rockets - Adventure Comics #307, Apr 1963
• Phantom-Zone projector - Sb 89, Act 287, Adv 293, Adv 300
• Perpetual radium lights - Adventure Comics #311, Aug 1963
• Probe-viewer - Adventure Comics #303, Dec 1962
• Robot cameraman - Adventure Comics #300, Sep 1962
• Selector machine - Adventure Comics #301, Oct 1962
• Sensitized scripto-plate - Adventure Comics #301, Oct 1962
• Serum XY-4 - Adventure Comics #300, Sep 1962
• Space-monitor - Adventure Comics #305, Feb 1963
• Space-warp prison - Adventure Comics #311, Aug 1963
• Super-powers nullifying device - Adventure Comics #300, Sep 1962
• Television trouble-finder - Adventure Comics #247, Apr 1958
  • Porta-monitor - Adventure Comics #302, Nov 1962
• Clark Kent's signal lamp, notifying Clark to meet the LSH - Adventure Comics #293, Feb 1962
• Time bubble - Adventure Comics #247, Apr 1958 (also referred to as a time-cabinet, time-globe or time-sphere)
• Time-mirror - Adventure Comics #311, Aug 1963
• Time-ray projector - Adventure Comics #300, Sep 1962
• Time-viewer - Action Comics v1 #267, Aug 1960 (also called a Timescope)
• Trans-Earth tunnel - Adventure Comics #267, Dec 1959
• Vault to house forbidden weapons - Adventure Comics #290, Nov 1961
  • Related to the Museum of Forbidden Weapons?? - Action Comics v1 #287, Apr 1962
• Vote-O-Matic - Adventure Comics #304, Jan 1963
• Weather-control device - Adventure Comics #301, Oct 1962
• Z-bombs - Adventure Comics #307, Apr 1963
• Z-ray - Adventure Comics #303, Dec 1962

Gadgets and Other Neat Stuff

• Bubble-tubes - Action Comics v1 #287, Apr 1962
• Comet-jewels - Adventure Comics #309, Jun 1963
• Duralim - Adventure Comics #312, Sep 1963
• Element #152 - Adventure Comics #305, Feb 1963
• Legion tree - Adventure Comics #308, May 1963
• Liquid money of Althar - Adventure Comics #309, Jun 1963
• Barakian living money - Adventure Comics #309, Jun 1963
• Energite - Adventure Comics #303, Dec 1962
• Flying crime-city - Adventure Comics #306, Mar 1963
• Fluvium - Adventure Comics #305, Feb 1963
• Healing urn - Adventure Comics #301, Oct 1962
• Hypno-interrogation - Adventure Comics #308, May 1963
• Living painting - Adventure Comics #308, May 1963
• Lurium metal - Adventure Comics #303, Dec 1962
• Maglium - Adventure Comics #308, May 1963
• Microfilm version of the Daily Planet - Adventure Comics #305, Feb 1963
• Missile message advertising - Adventure Comics #301, Oct 1962
• Movie-goggles - Adventure Comics #303, Dec 1962
• Plant that produces a live animal when it blooms (see Hyrnak) - Adventure Comics #311, Aug 1963
• Robot-gladiator tournament - Adventure Comics #301, Oct 1962
• Rocket-propelled advertising sign - Adventure Comics #305, Feb 1963
• Spectrium - Adventure Comics #304, Jan 1963
• Xernium - Adventure Comics #308, May 1963

Legion Traditions, Rules, Policies, Bylaws and Practices

• Hall of Heroes - Adventure Comics #300, Sep 1962
  • Lightning Lad statue - Adventure Comics #304, Jan 1963
  • Lightning Lad's tomb - Adventure Comics #305, Feb 1963
• Legion "Code of Good Behavior" - Superman v1 Annual #4, 1962 (Brief details)
• Legion Constitution - Adventure Comics #304, Jan 1963
• Legion flag - Adventure Comics #308, May 1963
• Legion leader elections - Adventure Comics #304, Jan 1963
• Legion rejects receive anti-gravity belt as consolation prize - Adventure Comics #306, Mar 1963
• Legion roll-call on splash page - Adventure Comics #309, Jun 1963
• Legion secret code - Adventure Comics #307, Apr 1963
• Legion vow of service - Adventure Comics #310, Jul 1963 (need to verify no earlier appearances)
• Legionnaire statuettes - Superboy v1 #86, Jan 1961. Other signal devices include:
  • Supergirl's Legionnaire bookends and model of the Legion Clubhouse - Action Comics v1 #287, Apr 1962
• Legionnaires have personal lockers in the clubhouse - Adventure Comics #302, Nov 1962
• Meeting table with member nameplates - Adventure Comics #247, Apr 1958
• Only one member admitted each year - Action Comics v1 #267, Aug 1960
• Annual rededication ceremony - Adventure Comics #310, Jul 1963
  • Changed to allow one girl and one boy each year - Action Comics v1 #276, May 1961
• Requirement that all members be 18 years old or younger - Action Comics v1 #267, Aug 1960
• "Roll call" listed at the beginning of the episode - Adventure Comics #309, Jun 1963
• Secret Legion handshake - Adventure Comics #290, Nov 1961

Sayings and Catch-Phrases

• "By the great red spot of Jupiter" - Adventure Comics #305, Feb 1963
• "By the three purple moons of Rimbor" - Superboy v1 #98, Jul 1962
• "Great canals of Mars" - Adventure Comics #305, Feb 1963
• "Great jumping suns" - Adventure Comics #312, Sep 1963
• "Great Jupiter" - Adventure Comics #309, Jun 1963
• "Great galaxies" - Adventure Comics #305, Feb 1963
• "Great rings of Saturn" - Adventure Comics #305, Feb 1963
• "It's too risky a mission for a girl" - Adventure Comics #309, Jun 1963
• "Long Live the Legion of Super-Heroes", "Long Live the Legion" or "LLL" - Adventure Comics #300, Sep 1962

30th/31st Century Sites, Features and Institutions

• Avenue of the Super-Heroes - Adventure Comics #306, Mar 1963
• Interplanetary Post Office - Adventure Comics #312, Sep 1963
• Medical Center of Daxam - Adventure Comics #312, Sep 1963
• Metropolis Spaceport - Adventure Comics #306, Mar 1963
• Metropolis Stadium - Adventure Comics #302, Nov 1962
• Mount Rushmore of Space - Adventure Comics #310, Jul 1963
• Museum of Medical Wonders - Adventure Comics #301, Oct 1962
• Science Foundation of Skor - Adventure Comics #312, Sep 1963
• Solar Bank - Adventure Comics #304, Jan 1963
• Space Bank - Adventure Comics #309, Jun 1963
• Underground ancient moon city - Adventure Comics #311, Aug 1963
• United Nations weapons arsenal - Adventure Comics #303, Dec 1962

Other Story Elements

• Christmas tree with miniature planets representing Legionnaire home worlds - Action Comics v1 #289, Jun 1962
• Daxamite susceptibility to lead poisoning - Superboy v1 #89, Jun 1961