Sources:
aka1908.org
https://dh.howard.edu/huarchives/
https://www.deltasigmatheta.org/
The Cincinnati Enquirer Cincinnati, Ohio. 16 Jul 2006, Sun
Ivy Day Traditions Exercised by Seniors of other Ivy League Universities.
Class Day at Columbia College, New York Times, 15 June 1875.
↑ Columbia University Quarterly Review, Volume 8, Pg. 442. It is unclear what precisely was being revived, since Ivy Orators were still being selected as early as 1898, see e.g. Columbia University Bulletin, March 1898, Pg. 145. Perhaps 1906 marked the revival of a planting ceremony in addition to an oration. The reference to yew trees is also interesting since the 1875 mention is of ivy.
↑ Columbia University Quarterly Review, Volume 9, Pg. 413.
↑ COLUMBIA '13 GIVES ITS CLASS RECORDS; Seniors Like the Turkey Trot -- Find Barnard the Best Girls' College., New York Times, 3 June 1913 [1]
↑ The American Education Review, Volume 30, Oct 1908 - Sept 1909, pgs. 537-538.
↑ Give Up Steps At Barnard., New York Times, 4 June 1913.
↑ Columbia University Quarterly Review, Volume 16, Pg. 413.