Hi there,
until about the 1940's or later (not sure when) citizens of Great Britian were not required to become naturalized citizens. Canada was still considered to part of the Commonwealth.
William Enoch Hyden served for Canada in WW1 - here is a link to his sign up papers
http://data2.archives.ca/cef/gpc007/411385a.gifhttp://data2.archives.ca/cef/gpc007/411385b.gifThere is also a James Hyden from Staffordshire serving in WW1
http://data2.archives.ca/cef/gpc007/411384a.gifhttp://data2.archives.ca/cef/gpc007/411384b.gifDoes the following seem to connect to your Hiden family
http://worldconnect.rootsweb.com/cgi-bin/igm.cgi?op=GET&db=:527579&id=I3902~~~~~~~~
ID: I3902
Name: William HIDEN
Given Name: William
Surname: Hiden
Sex: M
Birth: Abt 1845
Christening: 19 Oct 1845 ,Lower Way,Stafford,England
PEDI: birth
Father: Henry HYDEN Hiden b: 12 May 1793 in ,,of Staffordshire,England
Mother: Sarah MELLOR b: Abt 1804 in ,of Cannock,Stafford,England
Marriage 1 Mary Ann LINDORS b: Abt 1847 in ,,of Staffordshire,England
Married: 18 Mar 1867 in ,,of Staffordshire,England
You may want to post on the Nova Scotia Rootsweb site and see if someone can help - an obit would list survivors possibly.
Good luck
Sam
Canada