Cram was a member of the Boston firm of Cram & Ferguson. An authority on Gothic architecture, he designed buildings for Princeton University and the U. S. Military Academy at West Point as well as redesigned the Cathedral of St. John the Divine in New York City and many other churches. For seven years he was the head of the Department of Architecture at the Massachusetts Institute of Technology and served as Chairman of the Boston City Planning Board.


| period | name | type |
|---|---|---|
| North British Academy of Art | Fellow | |
| Royal Geographical Society | Fellow | |
| National Institute of Arts and Letters | member | |
| American Academy of Arts and Sciences | Fellow | |
| from 1901 | American Institute of Architects | member |
| from 1902 | American Institute of Architects | Fellow |