William was born in Wigan, son of George, a tinplate worker and Rachel.
In 1841, Wiliam (8) and Mary (11) were with their father George Mather (30) a Tinplate worker at Chapel Lane, Wigan.
In 1851, William (18) was an apprentice at Scholes, Wigan. This could be another person (as possibly for a grocer)!
In 1856 William Mather (23) a Brass Finisher, son of George Mather married Mary Booth (23) from Elton
In 1861, William and Mary (27 & 29) were in South Bury with Arthur Ernerst (3) and Anne Maud (3mo)
In 1881, William and Mary (47 & 48) were at 26 Darlington Street, Wigan with Arthur, Annie and two servant girls.