Francis Spellman was born in Whitman, Massachusetts, to William and Ellen (née Conway) Spellman. His father (1858–1957), whose own parents had immigrated to the United States from Clonmel and Leighlinbridge in Ireland, worked in shoemaking before becoming a grocer. The eldest of five children, Francis had two brothers, Martin and John, and two sisters, Marian and Helene. As a child, he served as an altar boy at the Holy Ghost Church. He had a difficult relationship with his strict father, but was very attached to his mother.