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.