This letter, typed on Mark's Drug Store letterhead and dated March 17, 1916, is to R. Reierson of Holt, Minnesota from the P. M. Mark Medicine Company of Fosston, Minnesota. The letter discusses an order for Louse Killer and Carbolic Acid and suggests a substitution of Cresol Compound since they were out of Carbolic Acid.
The letterhead of J. H. Johnson, dealer in General Merchandise, Groceries, Boots, Shoes, Etc., in Hitterdal, Minnesota notes "country produce taken in exchange for goods. " The order is dated January 5, 1916 and is for Mark's Headache Tablets, Kill Pain, Mark's Lung Balsam, Toothache Drops, Epsom Salts, Peppermint and Petroline from the P. M. Mark Medicine Company of Fosston, Minnesota.
K. Hodne, of Hodne Hardware Company in Karlstad, Minnesota, wrote a letter dated November 22, 1932 regarding an unfilled order for Mark's Carbolic Salve.