Thomas R. Cole (born 1949) is a writer, historian, filmmaker, and gerontologist. Patricia Moore (born 1952) is an American industrial designer, gerontologist, and author. This theory of aging was developed by Ray Walford, an American gerontologist. In 2007 she dated Pulitzer Prize-winning gerontologist Robert Neil Butler. Professionally a gerontologist, he is based today in Borough Park, Brooklyn, New York.