Tina, I would like to know more about the Kendrick family, but still need to determine if Preston was the son of William Allen and Rachel Kendrick.
Preston Allen, 60, was born in Franklin Co., Virginia to William and Rachel Allen. That was information he provided when he married Winney Pauley on Sept. 19, 1865.
In your other posting about William and Rachel you say that she was born 1752-54 and that they were living in Franklin County in 1801-02, where did that information come from? If that is true it seems more likely that they are the parents of Preston, though Rachel would have been around 50 when he was born.
Preston Allen had sisters; Grace who married Robert Brogan in Franklin County before 1810, this family went to Kanawha County, (West) Virginia; and Theodocia b. 1793 who married William Eskew in Franklin County, this family also went to Kanawha County, among their children were sons Preston and Kendrick. Preston's brothers; William b. 1785 married Susannah Smith in Franklin County and had ten children; Andrew b. 1790; and another brother born between 1800-10.
Have you seen the postings by W. Smith concerning John Kendrick on GenForum for Washington County? W. Smith seems to have good information on John.