Redford was born on August 18, 1936, in Santa Monica, California, to Martha Woodruff Redford (née Hart; 1914–1955) and Charles Robert Redford (1914–1991), an accountant. He has a half brother, William, from his father's first marriage. Redford is of English, Scottish, and Irish ancestry. His patrilineal great-great-grandfather, a Protestant Englishman named Elisha Redford, married Mary Ann McCreery, of Irish Catholic descent, in Manchester.