Claim: Mother of director Lambert Hillyer, Lydia Knott (October 1, 1866 – March 30, 1955) appeared in 91 films between 1914 and 1937, and has toured the United States in at least five productions, and was David Higgins' leading leady for years.
Evidence: For years, Knott was David Higgins' leading lady. She was the mother of director Lambert Hillyer. Lydia Knott (October 1, 1866 – March 30, 1955) was an American actress of the silent film era. She appeared in 91 films between 1914 and 1937. She also toured the United States in at least five productions. 
Born March 30, 1955(1955-03-30) (aged 88)
Woodland Hills, Los Angeles Actress 1914–1937 Lambert Hillyer (son)