Wendy,You can find this information at familysearch.org.
Ohio Deaths, 1908-1953 Emry Irwin May Irwin-her death certificate states Samuel Irwin was born in Baltimore, MD. Robert Irwin Eliza Irwin Their death certificates state the parents are Samuel Irwin and Mary Horlocker.
Ohio County Marriages Reed F. Irwin-parents are Samuel Irwin and Mary Horlocker Cora Hines-parents are John Hines and Jane Johnson Married-June 20, 1917
Katharine Irwin-parents Samuel Irwin and Mary Herlocker Edward O'Ryan-parents are Jerimah O'Ryan and Julia Uoker Married-July 5, 1916
Fred L. Irwin-parents Samuel Irwin and Mary Hirlocker Denna M. Garley-parents O.A. Garley and Mary Anderson Married-Feb. 21,1906