I recommend you write a letter to the court in the particular county seat. Salt Lake City has old probate and adoption records, you can look at. If you find a name in them, they will pull the file. The county seat of Salt Lake is Farmington. I have been trying to get the adoption or guardianship record for my uncle, to no avail. I am looking for my uncle who was born 20 Sep, 1916 in Salt Lake City.