She began her career as an actress working in 62 silent short films between 1913 and 1916 using her birth name Elizabeth Burbridge. She also appeared in four feature-length silent films: Rumpelstiltskin (1915), The Winged Idol (1915), The Tongues of Men (1916), and Charity (1916).
In 1917, Burbridge began her career as a screenwriter, working at first on silent short films. By 1923, she was writing a syndicated newspaper column under the name Prudence Penny Jr., providing readers advice on interior decorating and love.[1] In 1924, Burbridge was hired by film producer Lester F. Scott Jr. as a scriptwriter for his newly formed Action Pictures. From 1924 to 1929, she wrote a majority of Action Pictures' low-budget silent films for Buddy Roosevelt, Buffalo Bill, Jr., and Wally Wales.[1] By 1926, she was working almost exclusively on western films.[5] With the advent of sound films, Burbridge became a freelance writer, working on films for Rex Lease, Bob Custer, Jack Perrin, and Tom Tyler.[1]
In the 1950s, Burbridge began writing for television, contributing several screenplays for The Cisco Kid television series in 1950 and 1951, and three screenplays for The Gene Autry Show from 1950 to 1952.[5][6] Her last credited screenplay was for an episode of The Range Rider television series in 1952. Burbridge died on September 19, 1987, in Tarzana, California, at the age of 91.[1]