Gary Inrig, A Call to Excellence, (Victor Books, a division of SP Publ., Wheaton, Ill; 1985), p. 62
The record for the shortest major league baseball career probably belongs to a member of the old Brooklyn Dodgers, a pitcher named Harry Hartman. He was a gifted young ballplayer whose day of glory arrived in 1918 when he was called up from the minors to pitch against the Pittsburgh Pirates. This was the moment he'd dreamed about, the beginning of a great career, but his dreams began to fade when his first pitch was hit for a single. The next batter tripled. Rattled, he walked the hit for a single. The next batter tripled. Rattled, he walked the next batter on four straight pitches, and when he did throw a strike to the next hitter, it went for a single. At that point, Hartman had had enough. He headed for the showers, dressed, and walked out of the stadium to a naval recruiting office, where he enlisted. The next day, he was in a military uniform, never to be heard from in professional baseball again.