1943: The Denny Ahl lookout was constructed. The lookout was named after a Forest Service scaler who died of heart failure while rowing across Lake Cushman to service a fire crew.
October 27, 1952: "Elmer Hornby, about 30, of Tacoma, dropped dead at the Denny Ahl lookout in the Lake Cushman area of the Olympic Peninsula Sunday. Mason County Sheriff W.A. Potter, said Hornby had shot a deer and his two partners were packing it out for him. Hornby was stricken just as the party reached the steps leading to the lookout. Hornsby's father died under similar circumstances last year, the sheriff said." (The Daily Chronicle)
May 18, 1956: "On the Shelton District the Dennie Ahl Lookout is being manned and additional district personnel are on standby as needed. Special patrol in the Sitsap-Wynoochee area is being worked out with the Simpson Logging Company in conjunction with their logging operations." (Port Angeles Evening News)