By whom, was it said of Clapp, "His contributions..are so varied and numerous.."?
Lawrence Quincy Mumford
William S. Dix
Carl Sagan
Noam Chomsky
Answer
Lawrence Quincy Mumford, a historian and city planner, wrote that Clapp's contributions to the field of history were so varied and numerous that they were difficult to categorize. He also praised Clapp's work on the history of Boston, which he called "an indispensable source for any serious student of the city's history."
The Brilliance of Verner W. Clapp: Exploring the Life and Works of a Literary Luminary