Hi Phyllis, I have a Josiah Ferguson, b.ca 1733, but he married Marjorie Duvall of Prince George co.Md. He was on the 1790 census for Pr.Geo.Co.Md, 1 male under 16,4 females and 4 slaves. He was witness in a law suit in 1807 same co.state and said he was 64 yrs old at the time.This Josiah Ferguson was bro-in-law to my Gideon Walker and Pricilla Duvall that also lived in MD, Fayette co.Pa, and Nelson co.Ky. Also believe there was a Josiah in Nelson co.Ky early, Westmoreland co.Pa right next to Fayette co.Pa, my Pricilla and Marjorie Duvall were sisters, wonder if this could be second marriage for your Josiah? I dont know what yr they were married, but she was born in 1740 Md. hope this hasnt confused you more, Joan