Nicholas is a pretty rare surname on the Isle of Man. Could he have had brothers or cousins here? There are a couple of NICHOLAS marriages in the 1890s:

NICHOLAS, John Thomas

10 Oct 1897

Ref: Douglas/dsm 57

to OLLIEN, Elizabeth Ellen

NICHOLAS, Richard
12 Sep 1892

Ramsey/Maughold 84

to JONES, Susan

Susan Nicholas and her 2 children are in the 1901 Census in the Ramsey Area.

Also a few burials over the years:

NICHOLAS, Albert Bryant 62 German 18 Feb 1937
NICHOLAS, Alexander Eric 69 Lezayre 6 Nov 1962
NICHOLAS, David Bride 2 Nov 1811
NICHOLAS, David Nelson 68 Lezayre 26 Mar 1963
NICHOLAS, Elizabeth 38 Malew 26 Aug 1935
NICHOLAS, Harry 71 Braddan 29 Apr 1942
NICHOLAS, Ida Eileen 63 Malew 25 Jul 1975
NICHOLAS, James Albert 60 Malew 22 Mar 1964
NICHOLAS, Jane Malew 2 Apr 1743 SANSBURY
NICHOLAS, Margaret Mary 84 Lezayre 31 Dec 1986
NICHOLAS, Sarah infant Lezayre 12 Apr 1896