I think that my great+ gr.father Samuel Purviance might be James' brother. I'm looking for his parents and I suspect John P. & Lettice Dinsmore might be them. I have Samuel Purviance d.1780. Imig.from Tyrone, Ireland. md.Susanna Slidorn.Their Dau. Susanna Purviance d.1846, md.Robert Hughes (b.1767). Samuel & Susanna also had 2 other daughters: Letitia md.? Harvey, Elizabeth Isabella md. Henry Courtenay. Could this be the same family?