There is an interesting bit that may or may not match up.
There is a Jane E. Minnihan in 1940 census for Snohomish, Washington and she is married to a Ray A. Minnihan.
Ray born about 1905 California.In 1930 census there is a Ray Minihan25, living in San Francisco with his mother Katherine 46.
So, is it possible that Jane remarried after divorce from Robert and married another Minnihan??
I have not been able to find a marriage for this Ray to a Jane.
You did mention that her parents lived in Vancouver area, but did not say if you knew their names. 1911 census has them living at232 Pender St. E. Vancouver, B.C. WELBAND Charles, age37, baker, born march 1874 MAN (hard to read birthplace)
Margaretage 30, wife born June 1881ON
Janieage 6, daughter, born June 1905 BC
Bettie age 4, son, bornJuly 1907, BC (indexed as Bettie but looks like Bobbie and is male)
Charlie age 2, son born 1909 (not sure of month) BC
There is a marriage for a Charles Anthony Willband to Maggie Jane Basley, (looks like Bailey in image)June 22, 1904 Vancouver - he is shown born Harvey, New Brunswick, she shown born Callobogie, ON
his parents V. Willband and Jane Benyman ( in image it looks like Berryman) Maggie's parentsCharles Bailey and Elizabeth Derhew (so I suspect her name is actually Bailey not Basley)
Charles is a baker so that fits with the 1911 census info.
Charles died Oct. 22, 1946 Vancouver - parents Valentine Wilband and Jane Berryman, spouse Margaret Bailey - again he is shown born New Brunswick - March 1, 1874 but he is shown as divorced even though a wife's name is shown ??
I have not found the marriage for George Scroggie to Margaret Jane Wilband, but I wonder if she is in fact Margaret Jane Bailey Wilband - as she and Çharles seem to have been divorced at some point - perhaps she then married George. Problem is I cannot find a death for her. George died in 1985 New Westminster, B.C. George and Margaret Scroggie are in NewWest. in 1972 Voter's list
Do you have or want the earlier info on Margaret Jane Bailey - I found her in 1891 census in ON, notwith parents though, and her brother Thomas is in 1881 with parents and 1891 with his Aunt and Uncle.
I can also give you Charles Wilband in earlier census - found him in 1881 Harvey, Albert, New Brunswick with parents Valentine and Jane and several siblings.this from ancestry.com
but an interesting bit at the NB archives - a short notation saying Mount Gideon July 10, 1890 Valentine Wilband and family have left here for Vancouver, B.C. They are in 1891 census for New Westminster - all family members just listed by initials though they are also in 1901 , this time in Vancouver City
I don't know if you know Vancouver at all, but New Westminster (New West) is a suburb, part of Greater Vancouver
Valentine died 1908 Vancouver and there was a Nancy Jane Wilband death in 1911 , she is right age to be Jane Berryman Wilband and I see when I look back at census that in 1871 she is listed as Nancy Jane in census with husband Valentine so I think you can assume this is she.