Mortimer L. Neinken (May 16, 1896 – November 14, 1984) of New York City, was a collector and student of classic United States postage stamps.
Neinken was primarily interested in 19th century United States postage stamps.
He supplemented Ashbrook’s work by publishing “The United States Ten Cent Stamps of 1855-1859” in 1960 and “The United States One Cent Stamp of 1851-1861” in 1972.
Neinken also wrote “United States: The 1851-57 Twelve Cent Stamp (1964)” a work for which he received numerous honors and recognition.
An award, first presented in 1981, when he received it in 1984 from The Philatelic Foundation, was renamed the Mortimer L. Neinken Medal for Meritorious Service[1] in his honor.