Louis' Mixed Drinks with Hints for the Care & Serving of Wines by Louis Muckensturm (1906, p.106)

4 gallonsbrandy — California brandybase
5 poundswild cherry — Wild cherriesbase
0.5 gallonmaple syrup — Maple syrupsweetener
  1. Place the wild cherries and maple syrup in a wooden bucket and let ferment for three days, strain through cheese-cloth, transfer to a five-gallon jug, add the spirit, and age.

For cherry rum, substitute Medford rum for the California brandy.