I only have the index for 1891 but it appears that Robert died before that census.
There is a Robert Christian age 62 res Foxdale buried 22 Sep 1888
Of course there is NO MI.

Up jumps another Robert Christian b 1825ish Maughold also resident of Foxdale who was buried 9 Jan 1898 Foxdale
Foxdale
517 & 518
In loving memory of AGNES beloved wife of ROBERT CHRISTIAN who died August 17th 1896 aged 66 years
Also the above ROBERT CHRISTIAN who died January 5th 1898 aged 73 years
Also WILLIAM CHRISTIAN son of the above who died at Rico, Colorado June 6th 1892 aged 37 years
Also DAISY died August 20th 1892 aged 4 years
Also WILLIE died July 24th 1894 aged 15 years
Children of the above

This Robert Christian left a will 1898 Patrick

One of the Robert Christians was s/o Mark Christian & Margaret Kissack who md 19 Nov 1814 Maughold and who also resided at Port y Vullen Maughold

Anyone have a headache yet?

Donna