Mary Loos a stroke. 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
Gentlemen Prefer Blondes (novel) prompting Judge Hibbard to buy her a ticket to Hollywood so that she could use her talent to become a professional actress. He also names her ‘Lorelei’ because he believed it expressed her personality. Major Falcon informs Lorelei that Bartlett is now a senator travelling to Vienna for a secret conference. Major Falcon reveals that his mission is to find out what Bartlett is up to in Vienna. He encourages Lorelei to become friends with Bartlett, discover official secrets, and pass them on to him. Meanwhile, Lorelei deplores Dorothy's wasting time with a man who is a mere tennis champion.