Picture of Alvan Clark (center), and his sons, Alvan Graham Clark and George Bassett Clark
<a href="https://en.wikipedia.org/wiki/Thomas_Rice_Burnham" class="extiw" title="en:Thomas Rice Burnham">Thomas Rice Burnham</a>  (1834-1893), Boston
before 1887, ca. 1870
<a rel="nofollow" class="external free" href="http://digitalcollections.ucsc.edu/cdm/singleitem/collection/p265101coll10/id/780">http://digitalcollections.ucsc.edu/cdm/singleitem/collection/p265101coll10/id/780</a>