Chamberlain house in the foreground, residence of Susan Y. Chamberlain, widow of Thomas. House of Eugene Knapp in the background on the same side (south). House of Isaac White just visible in the background on the north side of Beacon.

From the 1887 photo series taken just before the widening of Beacon St., most likely by Augustine H. Folsom, a Boston photographer.
incl. Streets

[Courtesy of the Digital Commonwealth (CC BY-NC-ND). From the Brookline Photograph Collection published by the Public Library of Brookline]