Harry Luman Russell
Google: "Harry Russell"
(1866 - 1954)
Russell's PhD thesis "Bacteria in their relation to vegetable tissue" is available online : http://books.google.com/books?id=W2YaAAAAIAAJ&pg=PA2#v=onepage&q&f=true
At the bottom of page 2 Russell states the following: ..... so, at the suggestion of Prof. Welch, this topic was taken up for consideration.
Russel's M.Sc. thesis "A comparative study of certain allied saccharomyces-like organisms" is online as well: http://books.google.com/books?id=rcc7AAAAMAAJ&pg=PP7#v=onepage&q&f=true Birge approved it, see page 1 for his signature