Frank P. O'Brien, approximately 1917

Chicago citation style
Curtis Studio. Frank P. O'Brien, approximately 1917. approximately 1917. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/portraits/id/1081. (Accessed November 16, 2018.)
APA citation style
Curtis Studio, (approximately 1917) Frank P. O'Brien, approximately 1917. Retrieved from the Digital Public Library of America, http://cdm16786.contentdm.oclc.org/cdm/ref/collection/portraits/id/1081
MLA citation style
Curtis Studio. Retrieved from the Digital Public Library of America <http://cdm16786.contentdm.oclc.org/cdm/ref/collection/portraits/id/1081>.
Note: These citations are programmatically generated and may be incomplete.