Little, Heagen, & Pyle families

I am researching the Andrew Little (Revolutionary War patriot) family and the Patrick Heagen (Rev War Pat) family; both from the Pennsylvania area in the 1770s. I am also researching Col John Pyle's (Rev War Pat) family from Pennsylvania, N Carolina, & Kentucky areas...especially Julia Pyle who was married to Fielding Atchison. If you could help, I would appreciate it.