Vivienne, I am an 80 year old who grew up in the US a McKee. My earliest McKee ancestor was James M. McKee born about 15 April 1771 supposedly in County Down, Ireland. He was in Pennsylvania USA before 1806. He married, I believe, in the US, a Rachel Whan. Her sons stated that she had been born in New Jersey, US. I can find no immigration information and have no idea how to search Irish records, because I do not know any smaller jurisdiction than County Down. There was a strong Presbyterian connection in this line of McKees. Your post intrigued me. I would love to be related but I really don't have any hope of a connection. I thank you for any suggestions you might make.
Thank you and happy searching to you.
Nancy McKee Smith