I'm trying to find more information on Richard Shackleton b: 12 Jan 1760 or 11 Jan 1763. His Revolutionary War pension records say he was born 12 Jan 1760. I'm related to him through his daughter Martha b: 16 Dec 1799, D: 14 Apr 1871. Is this Shackleton family book still available to purchase? I know it's available in some libraries.