Shown here is the reverse side of a mailing envelope from the Wagener family correspondence archive, bearing a postal cancellation from Modesto, California. Filed among letters written by J.A. Wagener to his son, Pvt. Willis W. Wagener, this envelope's postmark date appears to read 1903 — potentially predating Willis's World War I service. Such items illustrate how family archives often preserve correspondence spanning multiple generations and time periods, offering researchers a broader view of a family's history beyond a single conflict. Project: 218020