Noted events in his life were:
1. Appearance in Document, 18 Jun 1783, London Grove Mtg, Chester County, Pennsylvania, United States. 2024 John Allen is in attendance at marriage of Thomas Cloud and Jane Allen
2. Appearance in Document, 22 Aug 1800, Chester County, Pennsylvania, United States. 2025 Will of [father] William Allen mentions son John who receives "all that ninety four acre tract of land Situate in the Township of Newgardn and adjoining on the East Side the Sixty three acre tract on which I now live (excepting a priviledge to my son William in the Limestone Quarry)". Will book L, p135.