The earliest family member found to date was Patrick McMahon who was born in Ireland in 1810. Patrick married Ellen Pike, who was born in Ireland in 1820, sometime circa 1839. Their first child, Bridget, was born in Ireland in February of 1840. In 1841, the family moved to Canada, most probably settling in the vicinity of Ottawa in Ontario province. While in Canada, William was born in 1844, Mary in 1848, Sarah in 1850, and John, my grandfather in 1854.
Bridget married Cornelius Shay in February of 1863 where she remained until 1869; the rest of the family emigrated to the United States in 1864 and, with the exception of William, settled in Springfield, Ohio, (Clark County). Patrick bought a small parcel of land in 1867 and became a U.S. citizen in 1870.
William did not go to Clark County with the family but instead, settled in Toledo, Ohio (Lucas County) In 1865, William married Catherine Larkins in Toledo; the couple had eight children born between 1866 and 1883.
Patrick most probably died in 1875