In 1861 Mary M. Roskilly, aged 43, born in Marazion Cornwall, unmarried, was with her parents in Higher Street, Liskeard.
In 1871 Mary Millett Nettle, aged 53, born in Marazion, married, husband in Plymouth, was visiting (her spinster sisters) Elizabeth Millett and Anna Millett in North Street, Marazion.
In 1881 Mary M Nattle, aged 63, born in Marazion, and husband Thomas Nattle, aged 81, born in St. Ive Cornwall, landowner of 210 acres, were living at Welltown House, Liskeard.
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NATTLE.—At Well Town, Liskeard, March 20, Mary Millett, wife of Thomas Nattle, aged 60.*
Royal Cornwall Gazette, Friday Morning, 28 Mar 1884, p. 5
* Mary died aged 66 years, which accords with her ages in the censuses.