Portrait of students, Académie Julian, France.  Among them are American artists Arthur W. Dow. (Centre, beneath the person in the light coat) and John Vanderpoel (lower row, all right, with moustache)
Unknown author<span style="display: none;">Unknown author</span>
Frederick Campbell Moffatt (1975), “The Breton Years of Arthur Wesley Dow”, in <cite>Archives of American Art Journal</cite>, volume 15, <small><a href="https://en.wikipedia.org/wiki/JSTOR" class="extiw" title="w:JSTOR">JSTOR</a> <a rel="nofollow" class="external text" href="http://jstor.org/pss/1556933">1556933</a></small>