Hi Rosemary.I found WWI enlistment papers for a John Ducharme of Boissevain, born Cut Arm Creek, father Joseph, however it listed his birthdate as 28 Jul 1889.So, I "think" this is the same John Ducharme as yours, but I am not possitive.Anyway, if is is him I think I found him in the 1916 Manitoba Census (Souris, Manitoba):
Joseph Ducharmeage 60 Rose"58wife Frederick "28 John"26 Emma"23 William"19
John's birthdate, calculated from his census age would be 1890, so that is close.I did find a marriage for a Joseph Ducharme & Rose:
Joseph Ducharme s/o Dominique & Sophie Henault m. 11 Feb 1879 Ste-Anne, Manitoba Rose Nolin d/o John & Julie Martin dite Lavallee
I don't know for sure if this is your Joseph & Rose.I did find a document from a Joseph Ducharme, b. 22 Nov 1857 Ste-Anne, where he lists his father Dominique as french-canadian and his mother Sophie Henault as Metis (mixed blood indian/french).His birthdate goes well with his age on the 1916 census too.I also found another document listing Rose Nolin b. 28 Aug 1857 d/o John & Julie Lavallee, and in this case both parents are listed as Metis.
I hope this is helpful to you!Email me at Anniebe222@aol.com and I can send you the census record and enlistment record if you don't have them.Annie