In the 1900 census there's a John OBOYLE b. Mar 1852 in NY, wife Anna b. Oct 1856 in Canada (Eng.) and children Lila and George living in Garfield Co, CO.John's occupation was R.R. Roadmaster.John and Anna state that all of their parents were born in Ireland.Anna immigrated to the U.S. in 1863.Lila is 24 and was born in VT.George is 20 and was born in Canada.
In 1910 they again say their parents were from Ireland.
Have you been able to get death records for either of them?