Here is a clear strike of a
Salem X Roads New York postmark (Alexander-Simpson 266). The settlement was renamed in 1857. The history is below.
The stamp is from sheet position 15R3. The 1857 deep claret color and July postmark date its use to July 1857, two months before the post office name was discontinued.


In February of 1835, a post office was established in
Salem X Roads. The name Salem X Roads came about when a group of eight or ten citizens gathered in 1834 to decide a name for this village and post office which at that time was simply called
Corners.
Each resident wrote a favorite name on pieces of paper which were tossed in a hat from which was drawn the name Salem. Since there already was a Salem in New York State, the name Salem X Roads was adopted.
A D. Howell was the first postmaster of a settlement containing approximately 11 houses, a store, blacksmith shop and a physicians office. The post office was located near the corner of what now is Main Street and Lake Avenue. A daily mail run was made from Buffalo to Erie, PA. and back, through Salem X Roads, by horses drawing a stagecoach which also carried passengers. The pounding of hooves and sound of grinding wooden wheels along the roadway stopped in 1852 when delivery of mail and passengers was contracted by the Buffalo & State Line Railroad.
Salem X Roads remained the name of the village and post office until Sept. 7, 1857 when, because of the continued confusion with the downstate Salem, the decision was made to change the name. According to the popular account, a meeting was held where, after much discussion took place,
two names were combined of two prominent family names in the community which were Brockway and Minton to form Brocton.
https://www.brocton.org/history