Hi,
Just to check, you say Robert Watson was born 1853, in Scotland.
However on the marriage transcript for Robert Watson, per family search it states :-
Robert Watson aged 31, so born abt 1840 Scotland the son of Andrew & Janet Watson
Mary Ellen Chapman aged 18, so born abt 1853 dau of George & Sarah Chapman.
On familysearch, and assuming Robert was born abt 1840, there is a christening:-
KINCLAVEN, PERTH, SCOTLAND
16th April 1837, born 9th April 1837 Robert Watson son of Andrew Watson & Janet Mcgregor.
http://www.scotlandspeople.gov.uk/ is the best place to look for info.
Spendlove