Edward is my great grandfather as well, and his wife was a a Similkameen indian woman according to Census records of 1881 for Nicola, Okanagan, and Yale area census. Marianne Amelie's maiden name was Topa. And the dates 1835 and 1889 are correct, same person.
Amelie is a similkameen indian from the mission of kelowna.
Eusebia is also known as christine Smithson was the daughter of indian mother named Julia and an englishman named william smithson, they married in the methodist church according to early misssionaries.
you can email me at firstname.lastname@example.org
my name is Donna,
Edward had a son named Joseph David McDougall who is my mother's father.
You might want to contact the methodist church or look up the similkameen indian band office. If this helps please email and let me know, I could phone you and tell lots more.