I was organizing old 1800 post offices with old maps..I have categorized about 400+ in just South Western Ontario...And about 700+ more.
FIRST THINGI was looking through an old map of Peel district and some areas have more than 80 smaller post offices...My wife looked at what I was doing and she said "
How come so many"

I told her there were 11 postal stations back then just in the area shown in the picture below.

Area above is just one small area of Peel county and I said imagine being a farmer in the 1800's and having to mail a letter..The Government had to have many, because if there were only say 3 postal areas, these farmers would have to get his horse hooked up to his buggy, and travel sat 10 miles to mail a letter would be (at 10 miles) about a 4 hour return trip..Not nice.
SECOND THINGThe book I use for cancelled stamp information is "
Canada Post Offices 1755-1895"
There is a Post Office called BURTCH which I believe may be a wrong input of information..Follow what I am explaining and let me know.

See the Archive Canada's postal information time frame below.
George Taylor was postmaster from 1862 to 1880
F.L.Jarvis was postmaster from 1882 to 1883
Now David Burtch re-opened the office in 1884.
"
Canada Post Offices 1755-1895" does not recognize the BUTCH postal station.
Now why would the first two postmasters name the post office after David Burtch..?..Until he re-opened it much latter.
THIRD THINGNow every stamp collector knows Scott 3, 5,7 are rare and hard to find..What about cancellation rarities..?..Below is a section taken out of Archives Canada's web site.

This Green River Station was open for only
3 MONTHS, before it got changed to Locust Hill..Now I am not a rocket scientist..But, if this office was only canceling with the Green River Station stamp..Find me one..Now that is rare.