This is not a name that I am researching but I am familiar with online research of Nova Scotia names.
The family that you are looking for can be found on the 1911 Canadian Census which can be viewed free at www.automatedgenealogy.ca
1911 Cape Breton South, Dist 34, Sydney page 42 McVicar Hughie R, head, born Feb 1855, age 56 Sarah, wife, born Aug 1864, age 47 John J., son born Apr 1886, age 25 Lauchlin E., son born Aug 1888, age 23 Margaret, daughter, born Jan 1894, age 17 Edward, son, born May 1897, age 14 Donald R. son born Jan 1902, age 9 If you look up the above website you can view the actual record which will give you occupation, religion, etc.
However Sarah is actually the above children’s stepmother.The marriage is recorded on the Nova Scotia Vital Stats site www.novascotiagenealogy.ca This is a free site.You can download a free viewer program to see the actual record
Sept 26, 1905, Sydney, Presbyterian Groom Hugh Ross MacVicar age 49 widower, janitor, residing Sydney, born Milton, Cape Breton son of John and Isabella Bride Sarah Mclean age 40, spinster, residing Sydney, born Woodbine, dau of Lachlan (farmer) and Margaret
McVicar, Hugh R. age 34, born NS, father born Scotland, mother born NS Flora, wife, age 28, born NS, father born Scotland, mother born Scotland John J. age 5, son born NS Lauchlin E . son age 2, born NS
The marriage of Hugh and Flora MacLeod (transcribed as MacLean) who is actually the mother of Hugh’s children is found on the Nova Scotia Vital stats site and you can also find the Marriage Certificate of Edward and Marion there, probably also some of Edwards brothers and sisters marriages. Let me know if you have trouble accessing any of the above sites or if I can be of further assistance.