Edmund Sixtus Muskie was born on Saturday, March 28, 1914 in Rumford, Maine. He was born after his parents' first child, Irene (b. 1912), and before his brother Eugene (b. 1918) and three sisters, Lucy (b. 1916), Elizabeth (b. 1923), and Frances (b. 1921). His father, Stephen Marciszewski, born and raised in Jasionówka, Russian Poland and worked as an estate manager for minor Russian nobility. He immigrated to America in 1903 and changed his name to Muskie from "Marciszewski" in 1914. He worked as a master tailor and Muskie's mother, Josephine (née Czarnecka) worked as a housewife. She was born to a Polish-American family in Buffalo, New York. Muskie's parents married in 1911, and Josephine moved to Rumford soon after.