Thanks v.m. Donna. Don't think Catherine remarried but she could have. Turnbull rather than Faunbull? However, I think I found Catherine Collister, wid (age76) liv. w/her sis. Jane Corrin (61) (nee Quark, chr. 8 Jan 1830, Rushen, m. Edward Corrin 30 Jan 1870 Kirk Rushen) in 1891 census. I think Catherine Collister d. Sep 5, 1892 Rushen (age 77). Quark is crossed over w/Quirk because of Manx annunciation - I'm sure you know.
Catherine Collister's (nee Quark) mother was Catherine Watterson and there was a Wm. Watterson (43, single, miner) lodging w/John and Catherine Quark (nee Watterson) in 1861 census. He must have been related? Any thoughts? U