Cathy, have you traced James McKee's family further back?
Your family would definitely seem to be connected to William McKee of Mifflin Township, whose will, dated 25 July 1823, proved 18 August 1823, mentions daughters Elizabeth William (or Wilborn, etc.) and her son John McKee, daughter Mary McKee, daughter Ann McGowan (who I think is the Anne, age 66, wife of James McGowan, 69, in Mifflin in 1850), granddaughter Elizabeth Levingston, granddaughter Margaret McKee, grandson William McKee, and son WIlliam McKee.
William McKee was undoubtedly the William, aged 56, living in Mifflin in 1850, with a wife Mary, same age.
Have you done much work on this family?
I feel that William was probably the brother of my ancestor, Guian (or Gavin) McKee (1750/1-1827), who left this neighborhood for Fleming County, Kentucky, in 1789, although he was back in Allegheny County in 1793.WIlliam, Gavin, and Robert McKee were listed regularly in the tax lists of Dickinson (and successor) townships in the 1780s.
By traditions in my own family, McKeesport was founded by relatives.Since they lived so close to McKeesport at that time, I feel that this group of probable brothers (Robert died in 1828 in St. CLair Township)very likely were nephews of David McKee (1710-1795).Guian had sons named Robert, William, and David.