Charles L. Jackman assembled his United States stamp collection in 1928 and 1929. Mr. Jackman was a prominent businessman in Concord, New Hampshire, and served as Chief Executive Officer of the Jackman Group of Insurance Companies and Chairman of the Board of Page Belting Manufacturing Company for decades. Mr. Jackman also served on the boards of several area banks, the Northern Railroad and United Life, as well as holding the office of police commissioner for the city of Concord.

Mr.Jackman died in 1957, leaving his collection to Margaret Gesen, who held it until her death in 1994.