When Marvel Comics had revived the character Captain America in 1964, the story explained that he had been missing in action and in suspended animation since 1945. This discrepancy with his postwar comic-book appearances was later explained as the result of replacement heroes taking on the mantle. As the third Captain America, Jeffrey Mace would have been behind the mask in "Captain America Comics" #59–75 (Nov. 1946 – Feb. 1950) and other comics during that period. Mace succeeded the second Captain America, William Naslund (formerly the Spirit of '76), who was shown in "What If?" vol. 1, #4 (Aug. 1977) as having been killed in 1946.