Theta Delta Chi Archive
Ralph Cuomo, '60, got these PDF files from somewhere and gave them to me. I believe they are the Theta Delta Chi pages from the M.I.T. yearbook.
There is one file for each year from 1898 through 2008. Each file contains several pages from the yearbook including names of members of the fraternity that year.
With most browsers (like Chrome) you just double click the file and it will display its contents: