Pie and Coffee has a very interesting story from Claire Schaeffer-Duffy, about the Mason Court area of Worcester, MA
"Mason Court does not appear on the 1870 Worcester map. Instead, there are two black rectangles numbered 66 and 69. These shapes mark lots owned by Joseph Mason and Francis Henshaw Dewey, Worcester attorneys who bought a large tract of land in the southwestern corner of the city in the late 1860s."
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