This is a one page, hand written letter dated 11 June 1975 from Harold L. Hungerford (Harold Leon Hungerford (1929-2008); reference SH1273 in the Surnames database) to Stanley W. Hungerford. It is accompanied by a one page list of names and a few dates.
Harold mentions his grandfather Edwin Buell Hungerford (reference SH701 in the Surnames database). Harold lists Edwin Buell Hungerford's wife and children (and the children's spouses) in the addendum accompanying his letter.