With there being a Riley in your family it is quite possible there is a family connection.My Wm,Tyler had brothers Enoch Austin.Spencer BoBo Jr.& Joseph born 1854.WE know really nothing about Joseph.My William Tyler son of Spencer Bobo Moore Sr.had sons Wm.Henry, Joseph Lee Nathaniel.Enoch Riley & John W. [possibly William] So in this family,the names Wm.came from their father.Spencer & Joseph from his brothers.I have always wondered if Spencer Bobo was soneones last name & if so why my Spencer Moore was named that.Since we do not know Spencers parents.It is possible his mother was a the daughter of a Spencer BoBo.