When Philip B. Sheridan was born on December 19, 1891, in Salem, Massachusetts, his father, Philip, was 52 and his mother, Mary, was 40. He had three brothers and four sisters. He was a member of the football and base ball teams of the University of Maine in the class of 1915, a graduate of the Plattsburg Officers' Training School, and went overseas in May, 1918. He served in the U.S. Army during World War I as a Second Lieutenant in Company L, 26th Infantry Regiment, 1st Infantry Division. He was Killed in Action on October 9, 1918 in France at the age of 26 and is now buried in Meuse-Argonne American Cemetery and Memorial, Romagne-sous-Montfaucon, Departement de la Meuse, Lorraine, France. His name is commemorated on the First Infantry Division monument in Saint-Juvin, France but his name's middle initial is inscribed as C.