Cause for Divorce was shot in 1923, while Brooks was still a member of the Denishawn Dance Company. I have run across a clipping from the time Brooks was on tour with Denishawn mentioning that the company took part in the making of a local film. The title was not given. What I need to find out is where Cause for Divorce was made. If it was shot in Hollywood, then Brooks does not appear in it. If Cause for Divorce was made in the South, then there is a chance she did. Does anyone know anything about Cause for Divorce or Hugh Dierker Productions? Does this film still exist? Here is the IMDb entry for the film.
And here is the AFI catalogue entry, which may provide a clue. I have tried tracing the career of the film lead, Fritzi Brunette, but she is pretty obscure. The only cast member I was familiar with was Junior Coughlan. Did he ever work in the South? Director Hugh Dierker is also obscure. He only produced three films. The first was When Dawn Came (1920), which featured Colleen Moore.
I realize this is all a bit speculative, but any help is greatly appreciated.