“Louis was born of Patrick, a dancing master, and Adrienne Françoise (List) Sullivan. His Irish-born father and Swiss-born mother had immigrated to the United States in 1847 and 1850, respectively, and were married in 1852. Their older son, Albert Walter, was born in 1854. Sullivan attended public schools in the Boston area and spent summers on his grandparents’ farm in nearby South Reading. When his parents moved to Chicago in 1869, Sullivan stayed behind with his grandparents and later with neighbours, commuting to school in Boston.”