| Generation No. 1 |
| 1. Thomas Underhill was the son of (2) Thomas Underhill and (3) Mary Underhill [Potter]. He was born 1727/28 at Frant, Sussex; christened 26th Feb 1727/28 at St. Alban's Church, Frant, Sussex, son of Thomas Underhill and Mary Underhill; died Jul 1800 at Mayfield, Sussex; buried 23rd Jul 1800 at St. Dunstan Church, Mayfield, Sussex | | He married Elizabeth Bones on 2nd May 1748 at St. Dunstan Church, Mayfield, Sussex. She was born 1726 at Mayfield, Sussex; christened 2nd Jan 1726 at St. Dunstan Church, Mayfield, Sussex; died Jul 1808 at Mayfield, Sussex; buried 17th Jul 1808 at St. Dunstan Church, Mayfield, Sussex. They had the following children: | | i | Mary who was born 1749 Mayfield, Sussex; christened 31st Jul 1749 St. Dunstan Church, Mayfield, Sussex, daughter of Thomas Underhill and Elizabeth Underhill | | ii | Elizabeth who was born 1750/51 Mayfield, Sussex; christened 10th Mar 1750/51 St. Dunstan Church, Mayfield, Sussex, daughter of Thomas Underhill and Elizabeth Underhill | | iii | Thomas who was born 1753 Mayfield, Sussex; christened 1753 St. Dunstan Church, Mayfield, Sussex, son of Thomas Underhill and Elizabeth Underhill | | iv | Daniel who was born 1755 Mayfield, Sussex; christened 21st Mar 1755 St. Dunstan Church, Mayfield, Sussex, son of Thomas Underhill and Elizabeth Underhill | | v | Sarah who was born 1758 Mayfield, Sussex; christened 6th Aug 1758 St. Dunstan Church, Mayfield, Sussex, daughter of Thomas Underhill and Elizabeth Underhill | | |
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| Generation No. 2 | | 2. Thomas Underhill He was born c 1700 | | He married Mary Potter on 1725. She was born c 1700. They had the following children: | | i | Mary who was born 1726 Frant, Sussex; christened 16th Sep 1726 St. Alban's Church, Frant, Sussex, daughter of Thomas Underhill and Mary Underhill | | ii | Thomas who was born 1727/28 Frant, Sussex; christened 26th Feb 1727/28 St. Alban's Church, Frant, Sussex, son of Thomas Underhill and Mary Underhill; died Jul 1800 Mayfield, Sussex; buried 23rd Jul 1800 St. Dunstan Church, Mayfield, Sussex | | iii | James who was born 1729 Frant, Sussex; christened 22nd Sep 1729 St. Alban's Church, Frant, Sussex, son of Thomas Underhill and Mary Underhill | | iv | Daniel who was born 1732 Frant, Sussex; christened 25th Jun 1732 St. Alban's Church, Frant, Sussex, son of Thomas Underhill and Mary Underhill | | | | 3. Mary Underhill [Potter] She was born c 1700 | | She married Thomas Underhill on 1725. He was born c 1700. They had the following children: | | i | Mary who was born 1726 Frant, Sussex; christened 16th Sep 1726 St. Alban's Church, Frant, Sussex, daughter of Thomas Underhill and Mary Underhill | | ii | Thomas who was born 1727/28 Frant, Sussex; christened 26th Feb 1727/28 St. Alban's Church, Frant, Sussex, son of Thomas Underhill and Mary Underhill; died Jul 1800 Mayfield, Sussex; buried 23rd Jul 1800 St. Dunstan Church, Mayfield, Sussex | | iii | James who was born 1729 Frant, Sussex; christened 22nd Sep 1729 St. Alban's Church, Frant, Sussex, son of Thomas Underhill and Mary Underhill | | iv | Daniel who was born 1732 Frant, Sussex; christened 25th Jun 1732 St. Alban's Church, Frant, Sussex, son of Thomas Underhill and Mary Underhill | | |
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