[3] Her brother was director Mark Sandrich, and she was a cousin of silent film actress Carmel Myers.

[3] Louise's first published Hollywood photo was of Vilma Banky in costume for Dark Angel, and appeared in Photoplay magazine in September 1925.

[5] In a career that lasted only five years, Louise photographed all the stars, contract players, and many of the hopefuls who passed through the studio's front gates, including Greta Garbo (Louise was one of only seven photographers permitted to make portraits of her),[3] Lon Chaney, John Gilbert, Joan Crawford, Marion Davies, Anna May Wong, Nina Mae McKinney, and Norma Shearer.

Today she is considered an equal with George Hurrell and other renowned glamour photographers of the era.

[3] Although in 1930 her contract with MGM was not renewed and the position of chief portrait photographer went to George Hurrell, Louise continued working through 1932, and her last recorded photo session was with actress Anna Sten.