She often acted in several Eiko film productions until the end of World War I, mainly under the direction of her husband Hubert Moest, who founded his own production company, Moest Production, in 1919.
Vernon died in 1925 at an unknown location, and of unknown causes.
In 1913, Vernon married the director, producer, screenwriter, and actor Hubert Moest. They divorced in 1920.
In 1914 she founded her own production company, Hedda Vernon Films, in Berlin and produced her own films for the Hedda Vernon series,including the self-directed The Yellow Grimace (1914) and Hedda Vernon's Stage Sketch (1916).
Vernon acted in 70 silent films from 1912 to 1925.