Dredging Lake Winona Heckman notes

Fremling\u27s handwritten notes regarding a meeting with George Heckman, who dredged Lake Winona in 1951-1952. Includes history of local and nearby locality dredgings (Minnesota and Wisconsin), and Heckman\u27s recommendations for dredging Lake Winona. 2 pages. Part of the Cal R. Fremling Collection.https://openriver.winona.edu/calfremlingpapers/1073/thumbnail.jp