I have scanned two pages with the children of Mordecai Doughty from OUR DOUGHTY FAMILIES, by Preston Doughty, 1966. He was from Corpus Christi, TX.Do you want to give me your email address? Email me at firstname.lastname@example.org
There are 141 pages on the descendants of Joseph 1755-1815.
Perhaps you could find the book through interlibrary loan.