Mary Loos Mary Loos Mary Loos (May 6, 1910 – October 11, 2004) was an American actress, screenwriter and novelist. She was occasionally credited under her full name, Mary Anita Loos. Born in San Diego, she was the daughter of Dr. Clifford Loos, co-founder of the Ross-Loos Medical Clinic and the Ross-Loos Medical Group, the first Health maintenance organization (HMO) in the United States. She was the niece of screenwriter Anita Loos. She was both co-creator and one of the writers for "Yancy Derringer" (1958-1959), an American Western TV series. Mary Loos died in Monterey, California, aged 94, due to complications following
Anita Loos look up", she lamented, "but what a terrible let down it would be to find out that I was smarter than he was." The pictures for Famous Players-Lasky were not as successful as their previous films, partly because they starred Broadway headliners not adept at screen acting. In addition to their film "collaborations" the couple wrote two books: "Breaking Into the Movies", published in 1919, followed by "How to Write Photoplays" in 1921. Though the scripts carried both names, they were mostly products of Loos alone. Later Loos would claim that Emerson took all the money and most of the