Correspondence on the following topics: Laguna Dam, California - Arizona; Los Angeles Harbor; Los Angeles Municipal Railway;
the decomposition of cement and concrete; the Paradise- Verde Irrigation District. Also correspondence and witness report
forms about earthquakes occurring in Southern California in 1917. Also correspondence with the following organizations and
bodies: Consolidation Committee of Los Angeles, Calif.; Los Angeles Harbor Commission; Municipal League of Los Angeles; Municipal
Hamlin was the City Engineer of Los Angeles from 1906 - 1917.
(Boxes: 2 ½ legal)
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