His father, James B. Hays, was a politician, attorney, and jurist who served as a member of the Wisconsin State Assembly.

While attorney general, Hays authored the proclamation of martial law during the Coeur d'Alene riots.

[3] In 1916, a recall election was organized against Boise mayor Jeremiah Robinson as a result of his efforts to close saloons, end gambling, and shut brothels.

[3] Samuel Hays married Gertrude Lindsey March 1, 1888, and the family included six children.

[2] The Samuel Hays House (1892) is listed on the National Register of Historic Places.