Hi
I am also interested in Grewcocks of South Shields. Henry Kane, son of Isabella, who died in 1841, was the father of my grandmother, Amelia. I have found out about Jonathan and Susannah who lived at Willow Cottages from the 1770s until the 1860s but would be very interested in going back to 1815 with the Grewcocks in South Shields. I know there are also Grewcocks in the Midlands but believe the South Shields branch were in that area for some time.
Many thanks for any further info. I am hoping to visit South Shields soon and find out further info. Alan's info sounds really intersting.