Robert Warwick was in an incredible amount of stuff from 1914 to 1960, Silent movies of course to start with,then Takies, a whold load of stuff we see him in, like The Adventures of Robin Hood with Erroll Flynn, Basel Rathbone et al, I Married a Witch 1942 (The basis of the 60s TV show Bewitched)
He's leaves acting in the WW and joins the Army when he was 39 years of age and serves in France as a Infantry officer and apperarly see's action as a Company Commander. (one source says 4th Div???), he also served later as a Liaison Officer with the French Army, (one source says he was discharged as a Major 1919), just like so many individuals we find, unit info and service photos are not available.
Warwick is familiar to most of us as Air Vice Marshal Alexander MacKaye, in the spooky Twilight Zone Episode, The Last Flight
Dialog from a play, Hamlet to Horatio: There are more things in heaven and earth than are dreamt of in your philosophy. Dialog from a play written long before men took to the sky: There are more things in heaven and earth and in the sky than perhaps can be dreamt of. And somewhere in between heaven, the sky, and the earth, lies The Twilight Zone.