A 1977 story, "What If" Vol. 1 #4, (August, 1977), introduces two other, previous Captain Americas - William Naslund, appointed by Truman in 1945 to succeed the original Captain America, and Jeff Mace, who succeeds Naslund as Cap in the spring of 1946 after Naslund is killed in action. These versions of the character were created to resolve the discrepancy created by the Captain America stories which had been published between 1945–1949 in the newer, post-"Avengers" #4 continuity. Though depicted in an issue of the "What If? " series, this story was explicitly noted as taking place as part of the formal canon.