William Tatnal Coe graduated the University of Minnesota in 1894 and the University Law School in 1896. In 1944 the Class of 1894 held their 50th reunion. Members were encouraged to write their autobiographies for the reunion. Coe's autobiography is posted here.
He practiced law in Minneapolis from his admission to the bar in 1896 to his retirement in 1949. He served one term in the Minnesota Legislature and several months as an officer in the 15th Minnesota Volunteer Infantry during the Spanish American War. He died on January 29, 1950, a few weeks shy of his 80th year. A memorial to him is posted separately on the MLHP.