- Born: 17 Dec 1839, , Randolph County, North Carolina
- Marriage: Mary PHILLIPS on 5 Dec 1867 in , Randolph County, North Carolina 1 2 3
- Died: 5 Feb 1921 at age 81
- Buried: Sophia, Randolph County, North Carolina 4
Allen married Mary PHILLIPS, daughter of John PHILLIPS and Unknown, on 5 Dec 1867 in , Randolph County, North Carolina.1 2 3 (Mary PHILLIPS was born on 22 Dec 1839 in , Randolph County, North Carolina, died on 24 Jun 1915 in Back Creek, Randolph County, North Carolina and was buried in Sophia, Randolph County, North Carolina 5.) The cause of her death was Peptic ulcers.
A 5¢ stamp with the likeness of President George Washington and the words "Inter Revenue" and "Certificate" is in the top left hand corner of the marrige certificate of Allen Millikan and Mary Phillips.
The article from which the following quote appeared was in the September 1943 issue of American Collector magazine entitled "Flashback: Panaceas of the Sixties Had Their Own Revenue Stamps" by James Brush Hatcher.
"Revenue stamps, issued under the Revenue Act of 1862, produced in the next twenty-one years some $192,000,000, which met a large hunk of the Civil War bill. These stamps were required on all papers showing a transfer of property, and on such assorted luxuries as playing cards, perfume, matches, patent medicine, photographs and canned fruit.
To collect the tax on these items, two kinds of stamps were used - United States revenue stamps, for the most part bearing George Washington's head, and private proprietary stamps, which pictured a trademark or whatever design the proprietor fancied would help advertise and sell his product. Collectors call the latter group match and medicine stamps, and they were the ones which raised two-thirds of the stamp-produced $192,000,000."