I am a decendent of Lydia Round. The line from the Matflower is as follows.
1.John Billington Sr. m Ellen (Mayflower 1620) 2. Frances Billington m Christian Penn Eaton 3. Mercy Billington m John Martin 4. Desire Martin m Jotham Carpenter 5. Renue Carpenter m Jabez Round Sr. 6. Zina Round m Lydia Goff 7. Jabez Round Jr. m Prudence Crossman 8. Lydia Round m Williard Allen