This accession includes correspondence between members of the Cooper-Culbertson family from 1917-1938, with the majority of the letters dating from 1917-1918. Most of these letters were written by Mattie Cooper to Lou Culbertson. One of these letters includes a bank note. Two greeting cards and a partial letter from a family member named Maude are also included in this accession. Common topics discussed in these letters are sickness, property, various family members, farming, and the involvement of family members in World War I.