In this circa 1938 photo of ships in the San Diego harbor, the largest is either the Dobbin class destroyer tender Whitney (AD-4) or Dobbin (AD-3) itself. Whitney provided service and supplies to many U.S. Navy destroyers during pre-World War II maneuvers. This ship was 483' 9" long, 61' wide, with a standard crew of 416 and a maximum speed of about 16 knots.
Above photo illustrates Radioman, Chapter 5 ("Radio School"), page 33 Source of Photo: Naval Historical Center, # NH 83923
Bonus Photos--not among the 42 included in the book
Above document illustrates Radioman, Chapter 5 ("Radio School"), page 34 Source of Document: U.S. Navy Bluejackets manual (1946 edition), N.A. Brown Collection
Prior to and during World War II, all future U.S. Navy radiomen attended a radio school like this one at the Naval Training Station in San Diego. (The black seaman's stripe on right shoulder of the white uniforms indicates that these sailors are not yet "rated"--qualified--in any Navy specialty.)
Above photo illustrates Radioman, Chapter 5 ("Radio School"), page 34 Source of Photo: U.S. Navy
May 1940: The main street of Big Bear Lake, a resort community in southeastern California. This region of the San Bernardino Mountains has been popular for on-location filming by Hollywood motion picture studios since 1914. Above photo illustrates Radioman, Chapter 5 ("Radio School"), page 36 Source of Photo: Irene Ripley Collection
Above document illustrates Radioman, Chapter 5 ("Radio School"), page 37 Source of Document: Ray Daves Collection
Above document--showing grade on Radio School final exam--illustrates Radioman, Chapter 5 ("Radio School"), page 37 Source of Document: Ray Daves Collection
Above document illustrates Radioman, Chapter 5 ("Radio School"), page 38 Source of Document: Ray Daves Collection