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Chronology of Aids to Navigation
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at one Atlantic coast station, with satisfactory results." (SECCOM AR 1938, p. 128). The Lighthouse Service Radio Laboratory completed during Fiscal Year 1938 the developmental work on a high-power radio beacon amplifier, on ultrahigh frequency radiophone equipment, and on a calling unit to increase the efficiency and reliability of radiophone circuits. (SECCOM AR 1938, p. 128).
1938	By this date, the development of "a buoy radio beacon transmitter was largely completed, and preliminary field trials started." (SECCOM AR 1938, p. 128).
1938	(1 February) The Lighthouse Service Radio Laboratory was moved from the shops of the lighthouse depot in Detroit, Michigan, "to the Lazaretto Lighthouse Depot in Baltimore, Md., where a building had been constructed providing more adequately for this important branch of the work of the Service." (SECCOM AR 1939, p. 120).
1939	(30 June) "The total personnel of the Service as of June 30, 1939, was 5,355, consisting of 4,119 full-time and 1,156 part-time employees, the former including 1,170 light keepers and assistants; 56 light attendants; 1,995 officers and crews of lightships and tenders; 113 Bureau officers, engineers, and draftsmen, and district superintendents and technical assistants; 226 clerks, messengers, janitors, and office laborers; 157 depot keepers and assistants, including watchmen and laborers; and 482 field-force employees engaged in construction and repair work." (SECCOM AR 1939, pp. 123-124).
1939	(30 June) "At the end of the year, the total number of lighthouse tenders was 65, of which 64 were in commission and I was out of commission and advertised for sale. Of the vessels in commission, 42 were steam-propelled, 18 had diesel engines, and 4 had Diesel-electric drive. The average age of the fleet of tenders is 19.52 years. There are 10 tenders, aggregating 8,535 tons, 35 years of age and over. Thirty lighthouse tenders are equipped with radiotelegraph; 38 with radio direction finders; and 55 with radio-telephones." (SECCOM AR 1939, p. 124).
1939	(30 June) "Lightships were maintained on 30 stations during the year. At the close of the year, the total number of lightships was 43, which included 9 relief ships and 4 ships out of commission." (SECCOM AR 1939, p. 124).
1939	(30 June) "The total number of aids to navigation maintained by the Lighthouse Service at the close of the fiscal year was 29,606, a net increase of 849 over the previous year." (SECCOM AR 1939, p. 115).
1939	During Fiscal Year 1939, the North Channel Radio beacon Buoy No. 10, the first radio beacon buoy to be placed in service in the United States, was established in Boston Harbor, Massachusetts. (SECCOM AR 1939, p. 115).
1939	(1 July) Under the President’s Reorganization Plan No. 11, made effective this date by Public Resolution No. 20, approved 7 June 1939, it was provided "that the Bureau of Lighthouses in the Department of Commerce and its functions be transferred to and consolidated with and administered as a part of the Coast Guard. This consolidation, made in the interest of efficiency and economy, will result in the transfer to and consolidation with the Coast Guard of the system of approximately 30,000 aids to navigation (including light vessels and lighthouses) maintained by the Lighthouse Service on the sea and lake coasts of the United States, on the rivers of the United States, and on the coasts of all other territory under
http://www.uscg.mil/hq/g-cp/history/h_USLHSchron.html
5/17/2005