I've got someone harnessing the homestead records for me and we'll have an update when the digital copies have been received. There may not be a vast quantity of genealogical information in the file, but one never knows.
A superficial search of post-1910 census records failed to locate Monteville in any census, but his wife apparently is enumerated in California in 1920. And there's a Monteville Harness living in Albequerque in the 1920s. I'm going to wait to do further research on him and his wife until I see what is in the homestead application.
Based upon what I've found on him and his wife in these later records, I'm wondering if the couple did not separate or divorce after 1910. At this point that is mere speculation based upon the information I have found thus far.
I'm also going to keep my goal in the forefront of my mind as well. I'm researching Monteville in hopes of determining who his biological parents are and if they were related to Monteville's adoptive parents in Hancock County, Illinois--James and Elizabeth (Chaney) Rampley.
Note: The Bureau of Land Management website does not (as of this writing) include every homestead ever granted--yet. Failure to find a name in that database does not mean the person did not receive a homestead.
I'm a strong believer in citations and in my work (and in Casefile Clues) I cite material in the spirit of Evidence Explained. Here on the Rootdig blog, I have a different philosophy. Posts made here have enough information that the reader could locate where the material was obtained.