Dynamite Cache Found In Ship Plot -- Investigation of the plot to bomb the Japanese Liner Hive Maru disclosed a big cache of Dynamite in the Puyallup River, a few miles from Seattle. Seattle detectives and United States custom officers recovered several water-tight cans and a 50-pound case of the Explosive by Dragging the River. Detective Lieuts. F.A. Himes, (left), and Walter J. O'Brien are shown with the 1,191 sticks of dynamite they recovered from the River After Questioning George Patridge, who was arrested in connection with the attempted bombing of the Hiye Maru. January 26, 1938. (Photo by ACME).