Perhaps the students were members of a fraternity. There are members of the YSM classes of 1913, 1914, 1915, and 1916 represented.
Subject (Geographic):
United States
Subject (Name):
Yale University. School of Medicine. Class of 1913, Yale University. School of Medicine. Class of 1914, Yale University. School of Medicine. Class of 1915, and Yale University. School of Medicine. Class of 1916
