Nancy M. Hooper married William Allen on 18 March 1815 in Henrico County, Virginia. Her son John W. Allen was born 17 March 1817. A biography of this John W. Allen appeared in the Perrin and Kniffin 3rd edition  of Kentucky-A History of the State. The article was in the section for Hart County and stated that John W. Allen was born in Hanover County on March 17, 1817, "second child, oldest son of 9, seven yet alive." The father is identified as William Allen, mother as Nancy Hooper,: and says that they were "natives of VA and of English descent."
What is really important about the article is that it ties John W. Allen to his maternal family, because it says that at the age of 15, John W. Allen apprenticed for the "carpenter's and millwright's trade with his uncle JOSEPH HOOPER." Allen moved to Barren County, Kentucky in 1836 and remained there for the best part of the next 40 years. In 1871 he opened a hotel in Edmonton County, and about 1873 moved to Hart County where he ran a hotel for ten years. In 1883, his hotel burnt down.
Regarding John Allen's parents, the article states:
"William Allen was engaged in agricultural pursuits and also in the saw and grist-mill business until his death, June 30, 1862, in his eighty-fourth year.He was called out with the Virginia militia during the war of 1812, but was not in active service. In early life he was not identified with any church, but in his sixtieth year he and his wife joined the Baptist Church, in which he afterward officiated as deacon."
and regarding Nancy (Hooper) Allen, it says,
"Mrs. Nancy Allen died in April, 1866, in about her seventieth year.Her father was one of the prominent and wealthy planters of the old common- wealth."