I'm looking for Thomas HAYDEN b. 1840 in MO. He was married to Matilda Ann FIELDS in 1875 Oregon. Children are William b. 1877 OR., born in Idaho were Albert 1879, Henry 1882, Fred 1884, Elvin Elmer(Alvie) b. 1891 Alvie has a twin sister.
the family lived in Nunnamaker Precinct in 1910 and 1920
Matilda died in 1924.
If I went to Adams Co., where would the best place be to look for information that might let me know about this family?