DeWitt Wallace (November 12, 1889 -- March 30, 1981, otherwise known as William Roy) was a United States magazine publisher. He co-founded Reader's Digest with his wife Lila Wallace and published the first issue in 1922.

Born in St. Paul, Minnesota, where his father was on the faculty (and later president) of Macalester College, he attended Mount Hermon School as a youth (now Northfield Mount Hermon). Wallace went to college at Macalester from 1907 to 1909 but transferred to the University of California at Berkeley for two years. He returned to St. Paul in 1912 and was hired by a publishing firm specializing in farming literature.

During World War I, Wallace enlisted in the U.S. Army and was wounded in the Verdun offensive. He spent four months in a French hospital, recovering from his injuries and passing the time by reading American magazines.

Returning to the U.S., Wallace spent every day of the next six months at the Minneapolis Public Library researching and condensing magazine articles. He wanted to create a magazine with articles on a wide variety of subjects, abridged so that each could be easily read. Wallace showed his sample magazine to Lila Bell Acheson, sister of an old college friend, who responded enthusiastically. He proposed to her and on October 15, 1921, they were married. The Wallaces decided to publish the magazine themselves and market it by direct mail. The first issue appeared in February 1922, and Reader's Digest soon became one of the most widely circulated periodicals in the world.