The Bugle Call

The Bugle Call is a 1927 American silent drama film directed by Edward Sedgwick and starring Jackie Coogan and Claire Windsor, which was released on August 6, 1927.
The Lost Film Files database lists this film as being lost.
Plot.
Billy Randalph (Coogan) who is a young bugler on a frontier cavalry post in the mid-1870s, whose stepmother Alice Tremayne (Windsor) attempts to replace his real mother who only lives in his memory.