Phew, a sighting at last! 1901 census:
John A Dair 60
Catherine Dair 52
Elizabeth Dair 86
William H Watson 52 visitor Wholesale Haberdesher b. England
Massiah Watson 35 visitor b Trinity, Midlothian
William F Young 27
Address: 11 Carnarvon St, Glasgow/ Kelvin
Added: For 1891, can't see this entry in the 1891 transcript I have, but from SP there is this entry:
MASSIAH DONALDSON
23
714/ 4/ 1
Oldhamstocks
East Lothian
Monica