William Moore was born in the year 1845 in Northern Ireland, one of six sons, and one daughter born to Samuel and Marjorie Moore of County Tyrone. Samuel Moore and his young family migrated to America in 1853 when William was eight years old, landing in Philadelphia, PA. Eventually the family moved on to live in the area of Hallsville, Ohio.
Two of the brothers, William and Edward, moved on to Jackson County, Kansas and lived in the Holton area. It was here that William Moore married Sarah Jane Rose on February 25, 1872.
William and Sarah Moore had five children: Aaron, Arastella, Minnie, Ethel and Bertha. They lived in Elk County, Kansas and eventually moved on to live in Oklahoma. In 1906 William Moore passed away at the age of 61 in Blackwell, Oklahoma. In 1913 Sarah Moore passed away at the age of 60 in Seattle, Washington.