It's catching on.

Top notice = Has been there from day 1.
Bottom notice = A, relatively, recent addition.
I suspect "they" may have mislabelled the map.
M.S. Walsh, I know, sells milk at Bunker's Hill farm, the "Cartographer" seems to have erroneously placed the lad at Fort Putnam. I took the liberty of putting him where I think he is not where they do.