Captain America (vol. 1) #109 (Jan. 1969):
“The Hero That Was!”
by Stan Lee, Jack Kirby, Syd Shores

Captain America (vol. 1) #109

Title: “The Hero That Was!”

Medium: comic

Cover date: Jan. 1969

Publisher: Marvel
Written by: Stan Lee
Art by: Jack Kirby, Syd Shores

14 characters in this story:

(Click links for info about character
and his/her religious practice, affiliation, etc.)
Pub. #
Captain America Captain America (Steve Rogers)
(lead character)
CBR Scale: I Protestant
Redeemers; Secret Defenders...  Marvel Timely 5,992
Winter Soldier Bucky (Bucky Barnes)
(lead character)
CBR Scale: U Protestant (nominal)
Kid Commandos; Liberty Legion...  Marvel Timely 395
Nick Fury Nick Fury hero
CBR Scale: U secular
black; S.H.I.E.L.D....  Marvel 1,898
Nazis Nazis villain group real/historical person
CBR Scale: D Nazi
[generic WWII Nazis] Timely Marvel, etc. 4,222
Professor Abraham Erskine Professor Reinstein (Professor Abraham Erskine) supporting character scientist
  [creator of the Super-Soldier Serum] Marvel 96
Agent X Agent R (Cynthia Glass) supporting character
CBR Scale: M Jewish Bundist
FBI Marvel Timely 6
Heinz Kruger Heinz Kruger villain
CBR Scale: D Nazi
[Captain America's 1st foe; Gestapo spy; killed Dr. Erskine] Marvel Timely 15
General Chester Phillips General Chester Phillips supporting character
  Project: Rebirth (leader); U.S. Army
[involved with Project: Rebirth, Captain America's origin]
Marvel 17
Sgt. Mike Duffy Sgt. Mike Duffy
(1-panel cameo, pg. 19, panel 1)
supporting character
  U.S. Army
[commanding officer of Steven Rogers (Captain America)]
Marvel Timely 7
Albert Einstein Albert Einstein
(character based on) 
scientist real/historical person
CBR Scale: S Jewish; Humanist; Ethical Culture
[1st app: Captain America (vol. 1) #269 (May 1982)] Marvel DC 252
S.H.I.E.L.D. S.H.I.E.L.D.
(mentioned, pg. 20, panel 6) 
supporting character group
  [government agency; intelligence agency...] Marvel 1,188
Adolf Hitler Adolf Hitler
(mentioned, pg. 11, 16) 
villain real/historical person
CBR Scale: D Nazi
[1st app: Uma Kaeru (1935)] Shochiku Kinema 1,593
George M. Barnes
(mentioned, pg. 19) 
supporting character
  U.S. Army
[Bucky's deceased father]
Marvel 3
Dear Abby (Abigail Van Buren)
(mentioned, pg. 20, panel 5) 
real/historical person
CBR Scale: S Jewish
[columnist] McNaught Syndicate; Universal Press Syndicate 14

In this issue, Captain America recalls one of the last missions he and Bucky went on together during World War II. After this recollection (pages 1 through 6), we see that Cap is talking to Nick Fury about his past. Then Captain America recalls his origin and history up until the time that he made Bucky Barnes his partner (pages 9 through 20). So most of this issue is a "flashback" to Captain America's World War II days, with 3 pages of framing material focusing on Cap with Nick Fury.