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A salute to Lieut. George H. Derby, California pioneer builder of Derby Dike, a famous first in Western flood control history; an address to the San Diego chapters, Sons of the Revolution and Daughters of the American Revolution, Nov. 3, 1962
- "A salute to Lieut. George H. Derby, California pioneer builder of Derby Dike, a famous first in Western flood control history; an address to the San Diego chapters, Sons of the Revolution and Daughters of the American Revolution, Nov. 3, 1962"@en