Information on John, eldest son of Jacob and Alice Keckley, in Elizabeth Qualls book Jacob's House about the CaKaKeckley family, is that he was born July 10, 1741 in Lancaster County, PA. He is reported to have fought in the Revolutionary War in Captain John Lamb's 4th Co. 3rd Battalion Lancaster and Cumberland Militia of PA. I have never checked this information but it is given by several different sources in the book. One source says John and his wife Elizabeth Whiteman moved to Cumberland County prior to 1778. What was the Cackley connection to Lancaster or Cumberland counties in Pennsylvania? If Alice was a Spilman in Germantown, VA how would she and Jacob have met?
As for the elusive Cackley-Spilman connection, a Michael Spilman was a chain-carrier when "Jacob Catley" had his 400 acres on "Hoggs Creek" surveyed in 1751 (pg. 30 Peggy Shomo Joyner, Abstracts of Virginia’s NORTHERN NECK WARRANTS & SURVEYS - FREDERICK COUNTY - 1747-1780, vol. 2 (1985), quoted in Qualls, pg. 8). Just recently I found a 1761 tax receipt for John Spilman in a folder of Keckley receipts in the Belle Keckley Collection, Stewart Bell Jr. Archives Room, Handley Regional Library, Winchester VA.