The Allen family history book I have shows this only.
(on page 43) Ambrose: b. Dec 7, 1724; m. Mary Bear Feb 27, 1745-46.She d. May 9, 1799.He was lost coming from Lisbon, 1756.Ch. A. Ambrose: b. May 17, 1749. B. Samuel: b. Mar 9, 1750. C. Jerusha: b. Jan 15, 1753; m. Benjamin Crowell Aug 17, 1775.
(on page 45) Ambrose and Hannah (Lee) Allen; m. Dec 24, 1767. ch. a. Ambrose: b. Oct. 25, 1768.
Samuel and Sarah (Masterson) Allen; m. about 1776. ch. a. Nathaniel M.: b. Nov 3, 1767. b. Benjamin: b.?. c. Samuel: b.?.
I do not have a lot on Ambrose family, but a lot of info on the decendents of William Allen.You may already have the info, but I will be glad to post it, if you wish.Jacinda.