Can Canadian citizenship by descent flow through adopted ancestor (adoption in 1920)?

[CanadianDriftwood]

I’m trying to determine whether I may have any claim to Canadian citizenship by descent under current law changes, but my family situation involves adoption and a very old timeline, so I’m hoping someone knowledgeable can weigh in.

Here is the family chain:

• My great-grandmother was born in Canada (I am still confirming exact date/place of birth).
• At some point, she moved from Canada to the United States. I do not yet know what year.
• In 1920, while living in the United States, she legally adopted my grandmother. My grandmother (born in US in 1919) was not her biological child.
• My grandmother never held Canadian citizenship papers or a Canadian passport, as far as my family knows.
• My mother was born in the United States in 1947.
• I was born in the United States in 1985.

So the chain is:

Canadian-born great-grandmother
↓
Adopted grandmother (adopted in US in 1920, non-biological child, born in US in 1919)
↓
Mother born in US in 1947
↓
Me, born in US in 1985

My question is:

Under current Canadian citizenship law (including recent changes affecting citizenship by descent / Lost Canadians), is there any possible path to citizenship for descendants when the chain passes through a child legally adopted by the Canadian-born ancestor rather than a biological child?

Or does the fact that the adoption occurred in the US in 1920 and my grandmother never held Canadian citizenship effectively end the possibility?

I realize this is an unusual edge case, but I’d appreciate any insight.

 

[canuck78]

Would post under citizenship.

 

[CanadianDriftwood]

Thanks for the reply, canuck78. Will do. Appreciate the guidance.