Although Peithologian's alumni included such prominent names as Columbia president Nicholas Murray Butler (Class of 1882), Nobel laureate Hermann Muller (Class of 1910), and publisher Alfred A. Knopf (Class of 1912), both it and Philolexian suffered declining membership after the turn of the century.
In 1927, Hermann Joseph Muller published research showing genetic effects, and in 1946 was awarded the Nobel prize for his findings.
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Three of Morgan's co-authors have their own articles: Calvin Bridges, Alfred Sturtevant and Hermann Joseph Muller.