+---John Martin (1865-)
Arthur Weir Martin (05 DEC 1904-28 JUN 1956)
| +---Anthony Trudgyan (-1737)
| +---William Trudgian (ABT 1695-SEP 1752)
| | +---Elizabeth Lawrey 
(-1738)
| +---William Trudgian (ABT 1722-)
| | | +---William Truscott
| | +---Jane Truscott (ABT 1697-MAY 1770)
| +---William Trudgian (ABT 1747-)
| | | +---Richard Osborne (-JUN 1667)
| | | | +---Eme Varcoe
| | | +---Richard Osborne
| | | | +---Joan ?
| | | +---Richard Osborne (-NOV 1707)
| | | | | +---Arthur Michell (-ABT 1657)
| | | | +---Constance Michell (ABT 1635-APR 1717)
| | | | | +---Thomas Corne (-1647)
| | | | +---Blanche Corne
| | | +---Benjamin Osborne (ABT 1687-NOV 1738)
| | | | +---Bettres ?
| | +---Jane Osborne (ABT 1723-OCT 1774)
| | | +---Thomas Tregenza
| | | +---Thomas Tregenza (ABT 1633-)
| | | | +---Julian ? (-30 APR 1665)
| | | +---Nicholas Tregenza (ABT 1655-APR 1734)
| | | | +---Mary ?
| | +---Ann Tregenza (ABT 1687-)
| +---Humphrey Trudgian (ABT 1779-MAR 1854)
| | | +---Humphrey Richards (1702-1759)
| | +---Honour Richards (1743-APR 1781)
| | | +---Amos Bennett
| | +---Mary Bennett (ABT 1706-)
| | +---Pascas Richard
| +---Joseph Trudgian (1807-)
| | +---Ann Murter
| +---Joseph Trudgian (1835-)
| | +---Elizabeth Johns
+---Phillippa Jane Trudgian (JUN 1863-DEC 1946)
| +---Thomas Beard
| +---Charles Beard (1813-BEF 1871)
| | +---Ann ?
+---Phillippa Beard (ABT 1835-19 AUG 1898)
+---Sophia Mountstephen (ABT 1807-)