Quite a lot of information on Wikipedia page; https://en.wikipedia.org/wiki/J._J._Rouse
Wrote "Pioneer Work in Canada" - scan wanted.
I took his name from the wikipedia page, but maybe it is James John rather than John James.
Google do have a scan of it https://books.google.co.uk/books?id=_rnRAAAAMAAJ but it is still in copyright til 2021 so won't be able to get it made available until then sadly.
The name "John James" is confirmed by BillionGraves.
