Margaret_Carnegie_Miller
Margaret Carnegie Miller (March 30, 1897 – April 11, 1990) was the only child of industrialist and philanthropist Andrew Carnegie and Louise Whitfield, and heiress to the Carnegie fortune.A native of Manhattan, New York City, from 1934 to 1973, Miller was a trustee of the Carnegie Corporation of New York, a grant-making foundation. The foundation was established by her father in 1911. From 1973 until her death in 1990, she was an honorary lifetime trustee.