Debuting at Leftfield in 1933, Johnson played for the Athletics until 1942. With Philadelphia, he would go to five All-Star Games. With the exception of his last season with the Athletics, he has least 20 Home Runs, with three of those years seeing him exceed 30. From 1935 to 1941, he hit the 100 RBI mark, and he also had four .300 seasons. Johnson joined Washington for one season, where he again was an All-Star, and he then completed his career with two seasons in Boston, where he was chosen for his seventh and eighth All-Star Game. Notably, in 1944, he would win the OBP and OPS Title, the only times that he would do so.
While Johnson had a good 1945, many of the players who served the U.S. during World War II were coming back, and he elected to retire rather than compete for a job. He could have easily compiled more stats, but at age 39 and 2,051 Hits and 252 Home Runs in, he had a great career.