When Philip Samuel Haymaker was born on 11 May 1872, in Indiana, United States, his father, Samuel Haymaker, was 26 and his mother, Elvira Louella Davis, was 24. He married Mille Durham on 18 February 1893, in Clark, Illinois, United States. They were the parents of at least 2 sons. He lived in McDonough, Illinois, United States in 1910 and Bushnell, McDonough, Illinois, United States for about 20 years. He registered for military service in 1896. He died on 7 March 1944, in Chalmers Township, McDonough, Illinois, United States, at the age of 71.
Possibly an Americanized form of German Hamacher or its Dutch equivalent Hamaker. Compare Hammaker .