Robert Norton Downs (1829-1920) M.D. UofP 1856, Isaac Busby Mulford, Jr. (1843-1882) M.D. UofP 1871, M.L. Richard, Thomas Mortimer Lloyd (1855-1936) M.D. UofP 1876, Richard Henry Lee (1827-1881) M.D. UofP 1848, John Heistand Grove (1825-1896) M.D. UofP 1849

Chicago citation style
Robert Norton Downs (1829-1920) M.D. UofP 1856, Isaac Busby Mulford, Jr. (1843-1882) M.D. UofP 1871, M.L. Richard, Thomas Mortimer Lloyd (1855-1936) M.D. UofP 1876, Richard Henry Lee (1827-1881) M.D. UofP 1848, John Heistand Grove (1825-1896) M.D. UofP 1849. Retrieved from the Digital Public Library of America, http://dla.library.upenn.edu/dla/archives/image.html?id=ARCHIVES_20160718054. (Accessed December 9, 2018.)
APA citation style
Robert Norton Downs (1829-1920) M.D. UofP 1856, Isaac Busby Mulford, Jr. (1843-1882) M.D. UofP 1871, M.L. Richard, Thomas Mortimer Lloyd (1855-1936) M.D. UofP 1876, Richard Henry Lee (1827-1881) M.D. UofP 1848, John Heistand Grove (1825-1896) M.D. UofP 1849. Retrieved from the Digital Public Library of America, http://dla.library.upenn.edu/dla/archives/image.html?id=ARCHIVES_20160718054
MLA citation style
Retrieved from the Digital Public Library of America <http://dla.library.upenn.edu/dla/archives/image.html?id=ARCHIVES_20160718054>.
Note: These citations are programmatically generated and may be incomplete.