'Ordinary Cutting," "Deep Cutting,' "Section of the Aqueduct on the Inland Route from the Head of the Saw Mill River to the City" Ink on paper; 9^4 x 14 V2 inches Jervis Public Library, Rome, NY, drawing #200 Plan of Supporting the Croton Aqueduct Across Ravines and Low Grounds, Dec. 27th 1836 Watercolor and Ink on paper; 25 x 33 V2 Inches Jen/is Public Library, Rome, NY, drawing #235 Section 3: The Corps of engineers Portratt of Mi^or David Bates Douglass (1790-1849), n.d. Contemporary print from glass plate negative Reproduction, courtesy of The Archives, Warren Hunting Smith Library, Hobart and William Smith Colleges, Geneva, NY Frederick R. Spencer (1806-1875), PortraK of John B. Jervis (1795-1885), c.1837 Oil on canvas; 30 x 25 Va inches Jervis Public Library, Rome, NY (on permanent loan from Addison White) George H. HIte (d.1880). Portrait of John B. Jarvia Oval miniature; 4x3 Inches Jervis Public Library, Rome, NY John B. Jervis, first Report to the Water Commissioners, December 1836 Jervis Public Library, Rome, NY Cast bronze letters "J B Jervis" (removed from High Bridge) Mounted on oak panel: 10 x 48 Inches Smithsonian Institution, National Museum of American History, cat. #327,973 Unknown Artist, Wedding Portrait of Fayette B. Tower and Anna R^Hna Phelps, 1839-40 Watercolor on paper; 8 V2 x 6 V2 inches Mrs. Helen Tower Wilson Theophlius Schramke, Description of the New York Croton Aqueduct In Elfish, Qarman and French, 1846 Book with 20 plates. New York and Berlin: printed by Mundt Court;esy of William Lee Frost Cathleen Polgreen, Aqueduct Overseer's House, Dobbs Ferry, NY, built 1845 Reproduction from contemporary slide Collection, Dobbs Feny Historical Society, Dobbs Ferry, NY Semi-Annual Report of the Water Commissioners for the Period ending December 31, 1847, Document No. 29, January 3, 1848 (cover signed by "Jas. Bremner") The Hudson River Museum of Westchester Letter from Fayette Tower to his mother, Mrs. D. T. Tower, from Sing Sing, March 7, 1839 (re: trying to find a job for his brother, and his transfer to High Bridge) Mrs. Helen Tower Wilson List of Engineering inspectors emptoyed on the 1st DMston during the present nHHith, In letter to John B. Jervis from Edmund French, Resident Engineer at Sing Sing, April 25, 1838 Jen/Is Public Library, Rome, NY SECTION 4: The Engineering Design and Hydraulic Concepts Fayette B. Tower, View above the Croton Dam, From Illustrations of the Croton Aqueduct, 1843 Engraved by William James Bennett; 5V2X 10 V2 Inches (Image) Ossining Historical Society Museum Fayette B. Tower, View below the Croton Dam, From Illustrations of the Croton Aqueduct, 1843 Engraved by Joseph Napoleon Gimbrede; 7 x 10 V2 Inches (Image) Ossining Historical Society Museum Charles Robert Leslie (1794-1859), View of the Croton Dam, c.1852 Wood engraving (tinted) from unknown magazine; SVax 7 inches (Image) Courtesy of William Lee Frost Croton Dam ahowing tha Oata Hotiaa and tha Road Bridge, 1863 From Photographic Views of the High Bridge and the Gate Houses of the New Reservoir (belonged to third Chief Engineer Alfred Wingate Craven); 2OV4X 28 V* inches Collection of ESL Information Services, Engineering Societies' Library, New Yort<, NY Lt. Theophlius Schramke, Croton Dam Design. Cross Section of OgM Curve, engraving in Description of the New York Croton Aqueduct in English, German and French, 1846 Reproduction, courtesy of William Lee Frost Fayette B. Tower, Tunnel & Gate Chamber at the Head of the Aqueduct, In Illustrations of the Croton Aqueduct, 1843 Engraved by Stephen H. Gimber (1810-1862) Reproduction, courtesy of The Historical Society of the Tarrytowns Possibly by John B. Jen/Is, Elevation of Regulating Gates (at Croton Dam), C.1841 Watercolor and Ink on paper; 22^4 x 33 Inches Jervis Public Library, Rome, NY, drawing #318 Fayette B. Tower, Entrance Ventilator, In Illustrations of the Croton Aqueduct, 1843 Engraved by Stephen H. Gimber Reproduction, courtesy of The Historical Society of the Tarrytowns Checklist Evelyn Fitzgerald, Detail, Croton Aqueduct Ventilator Inscription Reproduction from contemporary slide Collection, Dobbs Ferty Historical Society, Dobbs Ferry, NY Possibly by John B. Jervis, Aqueduct Bridge at Sing Sing (plan and elevation), c.1837-39 Watercolor and inl( on paper; 24 V2 x 39 inches Jen^is Public Library, Rome, NY, drawing #317 Fayette B. Tower, Croton Aqueduct at Sing Sing Kill, c.1842 Ink on paper; 9 x 12 inches Mrs. Helen Tower Wilson David B. Douglass, Land Takings Map #41: Land of Justice Dearman, Jewell and Stephen Tompkins, 1836 Ink and watercolor on paper Reproduction, courtesy of Westchester County Archives, Andrew J. Spano, County Clerk Fayette B. Tower, Jewell's Brook, c.1842 Ink and wash on paper ; 10 x 6V2 inches Mrs. Helen Tower Wilson T. E. Sickels, Viaduct near Saw-Mill River, c.1837-39 Watercolor and ink on paper: 17V2X 24^4 inches Jervis Public Library, Rome, NY, drawing #245 George Hayward (c.1800- ?), High Bridge, 1850 Three-color lithograph from Valentine's Manual, J^iX. 14