In 1841 Joan Tremain, aged 31, and husband William Tremain, aged 26, ag. lab., were living in Brill Leigh, Constantine. Present were daughter Ann (1), female servant Elizabeth Tresidder (20).
In 1850 Johannah Tremayne the wife of William Tremayne was named as a beneficiary in her father's will.
In 1851 Joan Tremayne, aged 41, born in Constantine, and husband William Tremayne, aged 35, born in Constantine, were living in Chegwidden, Constantine. Present were children (born in Constantine): Ann (11), Catherine (7), Grace (4), William (2), house servant Harriott Williams (22) of Wendron.
In 1861 Joan Tremayne, aged 51, born in Constantine, and husband William Tremayne, aged 46, born in Constantine, farmer of 52 acres, were living in Chegwidden, Constantine. Present were children (born in Constantine): Ann (21), Grace (14), scholar, Willm. (11), scholar, Cuthbert (9), scholar.
In 1871 Joan Tremayne, aged 61, born in Constantine, and husband William Tremayne, aged 56, born in Constantine, farmer of 35 acres, were living in Chegwidden, Constantine. Present were son Cuthbert (19) and general domestic servant Mary J. Williams (16) of Constantine.
In 1881 Joan Tremayne, aged 71, born in Constantine, and husband William Tremayne, aged 66, born in Constantine, farmer of 130 acres employing 3 men, were living in Chegwidden. Present were daughter Catherine Williams (36), stone mason's wife, son-in-law Francis Williams (36) of Wendron, stone-mason, grandchildren (born in Constantine): Henrietta T. Williams (8), scholar, William T. Williams (3), Anne G. Williams (1), and two servants.
1891 Joan Tremayne, aged 76*, born inConstantine, and husbnd William Tremayne, aged 81*, born in Constantine, farmer, were living in Chegwidden (Farm), Constantine. Present were daughter Ann Winn (51) of Constantine, widow, domestic housekeeper, grandchildren (born in Constantine): Elizabeth E. Winn (19), gen. servant (dom.), Cutbert T. (18), farm labourer.
* The census taker has reversed their ages.
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Joan Tremayne of Chegwidden died aged 81 years (burial record).
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TREMAYNE.—At Chegwidden, Constantine, June 13, Joan, wife of Mr. William Tremayne, aged 80.
Royal Cornwall Gazette, 18 Jun 1891, p. 5