Margaret Anne Cargill, September 24, 1920 – August 1, 2006 Margaret Anne Cargill, 85, an heiress to Minneapolis-based agribusiness Cargill who delighted in making significant but anonymous donations to a variety of worthy causes, died August 1 at her home in La Jolla, CA, after a long illness. Ms. Cargill was the daughter of Austen S. Cargill and his wife, Anne Ray Cargill. Both her father and brother, James R. Cargill, were senior executives at Cargill. From a young age, Ms. Cargill's interests focused on art, and she never was active in the business founded by her grandfather, William Cargill, in 1865. Born on Sept. 24, 1920 in Los Angeles, Ms. Cargill spent much of her early life in the Midwest, and attended Kemper Hall, a private Episcopal school for women in Kenosha, Wis. She loved Kemper Hall, and her experience there created a lifetime bond with the Episcopal Church that was the catalyst for much of her later philanthropy.