1901 has Joseph as a colliery oversman born Stirling and Janet as born Govan
in 1881 there is no Joseph and Janet Russell but there is a Joseph that fits with a different wife :-
parish of Slamannan Stirlingshire, ED5, P4, Line 8 Roll cssct 1881_140
Joseph Russel, oversman (coalmine) b. St Ninians Stirlingshire
Elizabeth, 36, wife, b.Stevenson Ayrshire
James, son, 17, b. Dalry Ayrshire
Elizabeth, dau, 6, b. Kilbarchan Renfrewshire
Margaret, dau, 3, b. Kilbarchan Renfrewshire
Janet Waugh, 13, visitor, b. Rutherglen Lanarkshire
(Rutherglen is next to Cambuslang where your Joseph was in 1901)
Looks as if Janet could be Joseph's 2nd wife, marriage between 1881 and 1885
will look for a suitable marriage in the indexes........found it :-
1883 Joseph Russell m. Janet Jamieson or McLuckie at Rutherglen.
Janet in 1881 census is a widow with 6 children :-
55 New St Rutherglen
Parish Rutherglen, ED 1, Household 58, line 2, cssct1881_268
Janet Jamieson, 39 b. Govan, domestic work
Jane, 21,b. Glasgow
Janet, 18, b. Rutherglen
Elizabeth, 16, b. Rutherglen
Charles, 13, b. Rutherglen
Margaret, 11, b. Rutherglen
Mary, 7, b. Rutherglen
Janet McLuckie married Crawford Jamieson, 1858, Rutherglen. they were on New St in 1861 (same street as she was at in 1881).
Elaine