Brown University has their portrait collection online! And so finding out about the painting and this person was a breeze.
In short, Bruce Bigelow, served as Vice President of Brown University from 1945 - 1954. This painting was done posthumously in 1958.
Follow this link to see this gorgeous portrait in color, and for more info:
http://dl.lib.brown.edu/portraits/display.php?idno=142
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