in All Star Comics #57 in 1951, also the last Golden Age Justice Society story. Later it was revealed that a special Senate investigation panel had moved to obtain the identities of all active superheroes, at which point virtually all members of the Justice Society retired. At this point in his life, as depicted in JSA #70, Pratt was engaged to Mary James, leading to their marriage at an undefined point in time (as confirmed by Justice Society of America: The Kingdom Special and others). Later years Pratt was revived with the rest of the team in 1963 in The Flash #137, and continued to make various appearances in the years that followed. The Atom comic book, showcasing the adventures of Ray Palmer, brought the Atom of Earth-2 together with the Atom of Earth-1. Issue #29 (1967) depicts Al Pratt as living in Calvin City and as being a professor at Calvin College; he also possesses a modified automobile that transforms from an ordinary convertible to the Atomobile. In this story it is Ray Palmer who builds a "special dimensional vibrator" that allows travel between the two Earths. The villain in this adventure is The Thinker. In issue #36 (1968) Al Pratt is specifically named a professor of nuclear physics at Calvin College. Built into the belt of his Atom uniform is his own "atomic vibrator" which allows travel between the Earths. Al is depicted as a young-looking man who is "so busy as the Atom" that he "sort of let romance pass [him] by". Shown also are his friends Bill and Betty Roberts, as well as his first meeting with Marion Thayer on a double date. It is unknown what had happened to Marion Thayer, but in DC Comics Presents #30 (February 1981), Pratt's wife Mary resembles the blonde Thayer more than the brunette James. The Atom's status with the Justice Society of America was as a reserve member up until after the formation of Infinity, Inc. Following the Crisis on Infinite Earths, the Last Days of the Justice Society Special (1986) told how Pratt, along with his teammates, prevented the unleashing of Ragnarök, a time-displaced and world-shattering event initiated by Adolf Hitler originally on April 12, 1945. In order to stave off the destruction of the world, Al and the others chose to enter a magical limbo - seemingly for all eternity. The 1992 miniseries Armageddon: Inferno brought