United States Department of the Interior, Geological Survey
One or more of the great recent New England floods of 1927, 1936, 1938, and 1955 exceeded the greatest known historical floods on most of the major rivers. Locally, on tributary streams, the great floods of recent years probably exceeded historical floods, but the certainty diminishes for the floods that occurred prior to the observance of living witnesses.
This report presents, by year, a condensation of the data on unusual historical floods (floods that occurred before establishment of gaging stations) and the sources of this evidence. This information will be helpful in the determination of the frequency of the highest flood or floods of record. Such determinations are necessary for studies of flood frequencies and magnitudes, which in turn are necessary for studies of relative costs and benefits of flood-control measures and of bridges, and for the evaluation of flood-plain insurance and zoning measures.
Thomson, M. T.; Gannon, William B.; Thomas, M. P.; and Hayes, G. S., "Historical Floods in New England" (1964). Maine History Documents. 431.
pre-print (i.e. pre-refereeing)