Hertha Marks Ayrton

She was born Phoebe Sarah Marks April 28, 1854 in Portsea, Portsmouth, Hampshire, UK — the third child of a Polish-Jewish watchmaker named Levi Marks and Alice Theresa Moss, a seamstress. Her father died in 1861, leaving Sarah’s mother with seven children — and another on the way — and Sarah with shared responsibility for caring for the children.