KENNISON

KENNISON 06.05. 1886 Marysville NB/CA 30.04. 1977 Auburndale MA/USA Karl Raymond Kennison obtained his BS degree from Massachusetts Institute of Technology MIT in 1908, and the honorary DSc degree from the Colby College, Waterville ME, in 1941. He was then from 1910 to 1915 the principal assistant of John R. Freeman (1855-1932) at Providence RI, dealing with water power and hydraulic structures projects. After some years as design engineer of dams in the NorthEast, Kennison founded in 1920 a consulting office at Boston MA. He was in addition chief engineer of the South Essex Sewerage District, deputy chief engineer of the Metropolitan District of the Water Supply Commission in Massachusetts, taking over as chief engineer in 1939. Kennison was in 1951 also a special lecturer at the Department of Civil Engineering, MIT, and from 1952 to 1956 chief engineer of the New York City Board of Water Supply. He was a Fellow of the American Society of Civil Engineers ASCE. Kennison was involved both in hydraulic research and engineering practice. His 1916 paper on the direct hydraulic jump was the first dealing with high approach flow Froude numbers, attracting a large number of discussions, which indicated the interest in this topic. A simplified formula for the sequent depth ratio was derived in 1931. In the 1920s he was concerned with water power including knowledge on turbines. Toward the end of his career, questions of water supply were dealt with. He was considered an expert in this field stating that attention should be given to this problem because only the best sources should provide this resource. It was also his belief that the more you know the better paid you will be. He further stated that young engineers tend to need to much supervision instead of using their own resources to solve the problem at hand. Anonymous (1952). Karl R. Kennison. Engineering News-Record 148(May 29): 68. P Anonymous (1964). Kennison, Karl R. Who’s who in engineering 9: 990. Lewis: New York. Kennison, K.R. (1916). The hydraulic jump in open-channel flow at high velocity. Trans. ASCE 80: 338-420. Kennison, K.R. (1920). Comprehensive plotting of water turbine characteristics. Trans. ASCE 83: 861-867. Kennison, K.R. (1934). Ware River intake shaft and diversion works. Civil Engineering 4(8): 388-392. Kennison, K.R. (1935). Quabbin Reservoir Work now in full swing. Water Works Engineering 88(18): 1062-1064. P

KERR 15.07. 1899 Philadelphia PA/USA 30.01. 1967 Flourtown PA/USA Samuel Logan Kerr graduated from University of Pennsylvania, Philadelphia PA, as a civil engineer in 1924, after having obtained a professional certificate from Ecole Speciale des Travaux Publics ETP, Paris France, in 1919. He was from 1924 to 1927 assistant hydraulic engineer, then until 1929 assistant chief engineer, continuing as resident engineer until 1935. From 1937 to 1945 Kerr was a senior mechanical engineer of the US Engineering Office, Eastport ME, from when he joined large firms at Philadelphia and Washington DC. Finally, until retirement, he was a consulting hydraulic engineer. Kerr was a Fellow of the American Society of Mechanical Engineers ASME, a member of the American Society of Civil Engineers ASCE, and the American Water Works Association AWWA. Kerr was widely known as excellent hydraulic engineer, particularly in the fields of water power, public water supply, pumping, water hammer, and surge control. During his early career he developed an automatic frequency and load control system for hydroelectric plants. Later he aided in the solution of water hammer problems in motordriven water works pumping systems including the Croton Lake Pumping Plant for New York City, the city of Toledo OH, or the St. Louis County Water Company. In the mid-thirties he was in charge of the mechanical section of the Passamaquoddy Tidal Power Project in Maine. Later he also designed chemical plants, circulating water systems for steel mills and utility plants. Kerr was one of the organizers of the 1933 ASME Water Hammer Congress held at Chicago IL. Anonymous (1938). S. Logan Kerr. Mechanical Engineering 60(12): 964. P Anonymous (1953). S. Logan Kerr honoured by ASME. Water Works Engineering 106(3): 221. P Anonymous (1954). Kerr, S. Logan. Who’s who in engineering 7: 1302. Lewis: New York. Anonymous (1968). S. Logan Kerr. Mechanical Engineering 90(4): 161. P Kerr, S.L. (1929). New aspects of maximum pressure rise in closed conduits. Trans. ASME 51(3): 13-30. Kerr, S.L. (1933). Committee report. Symposium on water hammer: 3-14. ASME: New York. Kerr, S.L. (1933). Water hammer tests in Croton Lake Pumping Plant. Symposium on water hammer: 84-90. ASME: New York. Kerr, S.L. (1935). Research investigation of current-meter behaviour in flowing water. Trans. ASME 57(HYD-9): 295-301. Kerr, S.L. (1951). Water hammer control. Journal AWWA 43(12): 985-999.