- Born: Abt 1791, St. Keverne, Cornwall
- Married: 27 Sep 1836, Mawgan in Meneage, Cornwall
- Buried: 16 Dec 1875, Mawgan in Meneage, Cornwall
Margery Trethowan of Mawgan died aged 85 years (burial record).
Margery married Nicholas TRETHOWAN of Mawgan, son of Nicholas TRETHOWAN and Jane TRESIDDER, on 27 Sep 1836 in Mawgan in Meneage, Cornwall. (Nicholas TRETHOWAN of Mawgan was born in 1775 in Constantine, Cornwall, christened on 12 Nov 1775 in Constantine, Cornwall and was buried on 4 Nov 1863 in Constantine, Cornwall.)
Nicholas Trethowan of Constantine and Margery Mayne of this parish
Married by Banns
Witnesses: John Boaden, Thomas Stephens