It will take a full, detailed examination of all my information to figure out where I got the attribution of Anne Strachau as Benjamin Alfred Pickering's wife. However, some info is available.
I own a copy of a letter from Benjamin's brother Joseph to my grandmother, his daughter, which says
"Have you heard from your Auntie Anne or cousin Gertie?"
and
"Do you remember Mrs. Strachau (Aunt Anne's Mother) and the white Cockatoo that bit your ear? Mother, you & I stayed a few days on the Barea with Mrs. Strachau."
From Edward Pickering's will, I know that Benjamin received the the house on Manning Road, Barea.
However, I do not see a reference to Benjamin Alfred's wife in that document. Since Blanche Shepherd had no sisters named Anne, and only a brother named George, who lived in England (where Joseph would not be visiting), I assume that "Auntie Anne" is the wife of one of Joseph's brothers who lived in Berea. That her maiden name was the same as her mother's married name is another tenuous assumption.
Since I seldom commit to the genealogy such tortured assumptions, I believe that I found the name of Benjamin Alfred Pickering's wife somewhere else. But I do not now know. I will try to get around to that research soon.