Richard B. Knotts joined the U. S. Naval Reserve at Pendleton, Oregon in January, 1943.  He attended Officer Candidate School on the east coast.  He was also trained in electronics and radar at Bowdoin College and MIT.  After completion of training he was assigned as the commanding officer of a mobile radar  unit in southern California.  After a number of transfers to various locations, the unit was assigned to Naval Auxiliary Air Station, North Bend, Oregon about October, 1944.  The unit was transferred again to Tongue Point Naval Air Station, Astoria, Oregon, in April, 1945.  The unit was physically located at Ft. Stevens, where it was used to direct the fire of the disappearing rifle at Battery 245.  Lt. Knotts received orders in February, 1946 to turn the radar unit in to Headquarters, 13th Naval District, Seattle, Washington, after which he was mustered out of active duty, and transferred to active reserve at Astoria, Oregon.  The photos show the unit in convoy, and at its location at Ft. Stevens.  LtCmdr Knotts retired with 22 years of service, active plus reserve.