(left to right): Clarence Dennis (1909-2005), John Heysham Gibbon, Jr. (1903-1973), Leland Clark, Jr. (1918-2005), Frank Gollan (1910-1988), and Vishwa Gupta

Chicago citation style
(left to right): Clarence Dennis (1909-2005), John Heysham Gibbon, Jr. (1903-1973), Leland Clark, Jr. (1918-2005), Frank Gollan (1910-1988), and Vishwa Gupta. 1-21-1950. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Asiris_arc_296751&repo=DPLA. (Accessed November 16, 2018.)
APA citation style
(1-21-1950) (left to right): Clarence Dennis (1909-2005), John Heysham Gibbon, Jr. (1903-1973), Leland Clark, Jr. (1918-2005), Frank Gollan (1910-1988), and Vishwa Gupta. Retrieved from the Digital Public Library of America, http://collections.si.edu/search/results.htm?q=record_ID%3Asiris_arc_296751&repo=DPLA
MLA citation style
Retrieved from the Digital Public Library of America <http://collections.si.edu/search/results.htm?q=record_ID%3Asiris_arc_296751&repo=DPLA>.
Note: These citations are programmatically generated and may be incomplete.