Eastwood was born on May 31, 1930, at Saint Francis Memorial Hospital in San Francisco, California, to Ruth ("" Runner; 1909–2006) and Clinton Eastwood (1906–1970). During her son's fame, Ruth was known by the surname of her second husband, John Belden Wood (1913–2004), whom she married after the death of Clinton Sr. Eastwood was nicknamed "Samson" by the hospital nurses because he weighed at birth. He has a younger sister, Jeanne Bernhardt (b. 1934). He is of English, Irish, Scottish, and Dutch ancestry. He is descended from "Mayflower" passenger William Bradford, and through this line is the 12th generation born in North America. His family relocated three times during the 1930s as his father changed occupations, residing in Sacramento in 1935, according to census records. Contrary to what Eastwood has indicated in media interviews, they did not move between 1940 and 1949. Settling in Piedmont, California, the Eastwoods lived in an affluent area of the town, had a swimming pool, belonged to a country club, and each parent drove their own car. Eastwood's father was a manufacturing executive at Georgia-Pacific for most of his working life. As Clint and Jeanne grew older, Ruth took a clerical job at IBM.