I've solved part of my question myself, as I found a copy of the Mayflower Index (Gen. Soc. of Mayflower Descendants, 1960).Timothy Jr. was a sixth-generation descendant of John and Priscilla: 1. John Alden m. Priscilla Mullins 2. Joseph Alden (1627-1696) m. Mary Simmons (1638-1697) 3. Deacon Joseph Alden (1667-1747) m. Hannah Dunham (1671-1747) 4. Eleazer Alden m. Martha Shaw 5. Rev. Timothy Alden, Sr. m. Sarah Weld (b. 1738) on Nov. 22, 1770 6. Rev. Timothy Alden, Jr. (1771-1839) m. Elizabeth S. WormsteadI also found listings for two daughters of Timothy Jr. and Elizabeth.However, I'm sure there were more children (at least two sons), and would like help in clarifying.Thanks.