Just to add to this I know each Chartered Bank has published various books regarding their own history. For example, The Bank of Nova Scotia, published three history books ...the first being 1900 (covering 1832 to 1900), the second being 1932 as this was the "one hundreth anniversary", and the most recent 1982 as the 150th anniversary.
Each publication contains full history.
I know a former active member of this Forum that found a site where you can purchase this type of history (I put mine together the old way).
Anyway, the history is available to those that put forward the effort.
;)eastguy