ABSTRACT
TURNBULL W. 09.10. 1800 Philadelphia PA/USA 09.12. 1857 Wilmington NC/USA William Turnbull graduated in 1819 from the US Military Academy, entering as second lieutenant the Corps of Artillery. He was engaged from 1819 to 1831 as topographical engineer, finally in the rank of captain. He was from 1832 to 1843 assigned to the construction of the canal aqueducts across Potomac River at Georgetown DC. This work, one of the earliest of the important undertakings of American engineers, gave him a high rank among professional associates. The piers of the aqueduct were founded by coffer dams on rock, covered by mud and were nearly 15 m below the water surface. He was then in 1838 promoted to major, having charge of the repairs of the Potomac Long Bridge, connecting Washington DC and Alexandria VA. Turnbull was subsequently in charge of harbour improvements at the Great Lakes and Lake Champlain. From 1846 to 1848 he was chief topographical engineer taking part in all operations from the siege of Vera Cruz to the capture of Mexico City. These services gained for him the brevet of lieutenant colonel, and colonel. From 1850 to 1852 he acted as assistant in the Topographical Bureau at Washington DC, and he investigated until 1854 the practicability of bridging the Susquehanna River at Havre de Grace MD, and the expediency of an additional canal around the Falls of Ohio. He also was from 1853 to 1855 light-house engineer for Oswego Harbour, New York, and in charge of harbour improvements of Lake Champlain, Lake Ontario, and the eastern part of Lake Erie. He finally worked on the improvement of the Cape Fear River in North Carolina until 1857. Among his various published government reports is his 1838 study on the Potomac Aqueduct, including 21 plates. FitzSimons, N. (1972). Turnbull, William. Biographical dictionary of American civil engineers: 119. ASCE: New York. Turnbull, W. (1838). On the survey and construction of the Potomac Aqueduct. House of Representatives, Document 459, 25th Congress, 2nd Session. Washington DC. Turnbull, W. (1847). An essay on the air-pump and atmospheric railway containing formulae and rules for calculating the various quantities contained in Mr. Stephenson’s report on atmospheric propulsion. Williams: London. Turnbull, W. (1873). Reports on the construction of the piers of the aqueduct of the Alexandria Canal across the Potomac River at Georgetown, 1835-1840. Washington DC. (P) https://www.topogs.org/b_wturnbull.html
TURNEAURE 30.07. 1866 Freeport IL/USA 31.03. 1951 Madison WI/USA Frederick Eugene Turneaure was educated at Cornell University, Ithaca NY, receiving the CE degree in 1889. He was then an instructor in civil engineering at Washington University, St. Louis MO, professor of bridge and hydraulic engineering at the University of Wisconsin, Madison WI, from 1892 to 1903, and from then there dean of the College of Engineering until retirement in 1937. He was a member of the American Society of Civil Engineers and elected to its honorary membership in 1933. He also was a member of the Western Society of Engineers, and of the American Concrete Institute ACI. He further received the Turner Medal of this Institute in 1930. Turneaure has written a number of civil engineering texts, including the Public water supplies. This book reflects well the engineering literature of its time, with a standard knowledge addressing civil engineers in general, without great details on the particular features of a certain phenomenon. The book is well illustrated to attract readers who are not familiar with the elements of water supply installations. Turneaure also wrote books on the Principles of mechanics, again a basic text, or his Hydraulic engineering, of which the title summarizes almost completely the book contents. Further works also relate to bridge design and to reinforced concrete, or to highway design and to sanitary engineering, covering almost completely all civil engineering fields. Anonymous (1933). Turneaure elected to honorary membership. Civil Engineering 3(12): 696. P Anonymous (1937). F.E. Turneaure receives Lamme Medal. American Machinist 81: 636c. P Anonymous (1941). Turneaure, Frederick E. Who’s who in engineering 5: 1810. Lewis: NY. Anonymous (1951). Dean F.E. Turneaure dies. Civil Engineering 21(5): 291. P Turneaure, F.E. (1900). The principles of mechanics: An elementary exposition for students of physics. Macmillan: New York. Turneaure, F.E., Russell, H.L. (1901). Public water supplies. Wiley: New York. Turneaure, F.E., Black, A. (1909). Hydraulic engineering: A practical treatise on the principles of water pressure and flow and their application to the development of water power, including the calculation, design, and construction of water wheels, turbines, and other details of hydraulic power plants. American School of Correspondence: Chicago. Turneaure, F.E., Russell, H.L. (1933). Methods for ground-water supplies. Water and Water Engineering 34(411): 603-606; 35(413): 25-28. Turneaure, F.E. (1935). Current work at the University of Wisconsin. ENR 114(Mar.28): 455-457.
