My Name is Joseph Tolman and my mothers maiden name Barbara Marcile Singleton.
Concerning your inquiry in regards John Singleton born in 1788 in Thurlow.
Capt George Singleton & Nancy"Ann" McArthur had a son JOHN SINGLETON B:1789 in Thurlow
John married Margaret Cannif on 3 Feb 1811.
John and Margaret had 5 children
Child # 2 was George Singleton
George was B: 1815 M: Catherine Sparrow 6 Jul 1843
George & Catherine had 9 children
Child # 6 was William L. Singleton--
However, William L was born in 1843