I am also looking in abiquiu, my grandfather was raised there, name was merejildo ( often written with a g- not j) vialpando.Will check an assumed name of his parents for you may be connected.I was told he went to the navaho school, but he was pueblo.
I have a photo if you know what he looked like. Told father was Garcela, mother Paulina. My god mother said all had to go to this school as only one availble, and yes he was not navaho. The records for each pueblo hard to find.