RDreher
No, this place is apparently called Blackesley Corner. Here is a mention of the place with this spelling from the Chenango County Historical Society: https://chenangohistorical.org/town/coventry/

The government website of the town of Coventry itself does not list this hamlet, but NY hamlets can often be rather informal. http://coventryny.com/

The Blakesely Rd might be named wrong. I will check this next.