Sarah McPherson b. Inverness CB, m. 1900 in Rumford Maine, 1926 res. Portland

Looking for information on a Sarah McPherson:

Born in Inverness, Cape Breton (date unknown)

Married Robert McKinnon on 2/25/1900 in Rumford, Maine, US

Had son, John M. McKinnon, born in 1907

On John's 8/19/1926 marriage record, Sarah McPherson is listed as having the occupation of pastry chef and living in Portland, Maine, and Robert McKinnon is listed as deceased.

Any information would be greatly appreciated.I am doing ancestry research for my grandmother who was adopted.