The Robinson School, actually the Benjamin J. Cushing School, was located where there is now a vacant lot on Robinson Street, where pieces of stone and fence indicate what was once there.
Postcard. Caption on front: The Robinson School, Dorchester, Mass. Photo by J.V. Hartman. Postally unused. On verso: Pub. by J.V. Hartman & Co., Boston, Mass. Series 64.
This building, named the Benjamin J. Cushing School, opened in 1897 and closed in 1973. It was demolished soon thereafter.
The detail from the 1933 atlas shows the location.