Unfortunately, I think I sent you on a wild goose chase there. Winnie/Winifred Plaine appears on censuses to 1950.
I had looked for her immigration records with no success and then not long ago found a Winnie Rushe who fitted but was in 1892.
However, I have just had another search and this looks better.
https://www.familysearch.org/ark:/61903/1:1:247P-NWSWinnie Rush (born 1888 - so age is out) marrying Frank McKenna in 1920, NY.
She has parents John Rush and Cathrine Bones.
Apologies for earlier post!