Dudley B March, Ontario, Canada

I am looking for the descendants of:

Marjorie Drummond Carthew, born 22 Nov 1897 in Waterloo North, Waterloo Co., Ontario, Canada.She married on 29 Aug 1922 Dudley Brooke March, born 17 Mar 1897 in Partridge Island, New Brunswick, Canada; died in London, Ontario, Canada.
       Children of Marjorie Drummond Carthew and Dudley Brooke March were as follows:
       i       (---) March.
       ii       (---) March.
       iii       (---) March.

Any assistance would be appreciated. Thanks.
hemmingsdd@gmail.com