I have found a record for the birth of John Gregg July 1811, to Hugh Gregg and Mary Walker. From there on I get stuck. The parish records and civil records are hard to find before 1800. Does anyone have any connection to either Hugh or Mary?
I'm not sure if I can help - but I have Greggs in my family tree - all born in Ireland. The Rev. Tresham Dames Gregg was born about 1800 in Mt. Jerome, Ireland, and I don't know if this is anywhere near your John Gregg. But His father, grandfather, and great-grandfather were all named "Hugh Gregg." I don't have any Mary Walker, however. But I have a Hugh married to a Martha Dames, a Hugh married to a Mary O'Kelley, and a Hugh married to Rose Tresham. This last Hugh was born about 1720 in Ireland.
I don't think we have a match. My John Gregg was born 1811 in the city of Sligo to Hugh Gregg and Mary Walker. Before them is a mystery. They still might have been related somehow. All the Greggs had some connection, no doubt.
Laurel, I believe we are chasing the same information here. My John Gregg (my great x3 grandfather) was married to Ellen Hudson and was born in Sligo, Ireland about 1811. I believe his father was Hugh Gregg.
My lineage - John Stuart Gregg Jr. (me) - John Stuart Gregg - Horace Lorne Crawford Gregg - John James Gregg - George Gregg - John Gregg - Hugh Gregg. I have multiple references for all links but to Hugh and earlier.