University of Nebraska, 1879-1880. Bachelor of Science, Hillsdale (Michigan) College, 1884, Master of Science, 1887. Graduate course Cornell, 1888-1889.
Electrical Engineer, University of Nebraska, 1897.
Honorary M.Ph., Hillsdale, 1889, honorary diploma, 1903. Doctor of Science, Armour Institute, 1907.
Doctor of Engineering, University of Nebraska, 1911.
Chief designer, Iowa Iron Works, Dubuque. Mechanic engineer, C.G.W. Railway. Later construction engineering for Chicago office General Electric Company.
Independent construction engineering since 1893.
Designed and built Intramural Railway, Chicago Exposition. Consultant elcc. engineer Chicago & Milwaukee Electrical
Railway, Chicago Board of Trade, C.,B.& Q. Railroad, Grand Trunk Railway on electrification of Saint Clair tunnel. Construction engineering Wisconsin State Railway Commission, 1905-1907.
Devised plan for electrically operating trains of New York Central Railroad in and out of New York, and member Eloctric Traction Commissioners engaged in carrying on the work.
Member electric traction committee Erie Railroad, 1900-1904. Construction engineering for city of Chicago to revise street railway systems of city, 1902. Chief engineer rebuilding Chicago traction system at cost approximately $140,000,000, and Chairman of the Board supervising engineers same since 1907.
Construction engineering Public Service Commission, 1st District, New York, matters connected with subway and st. railway properties, New New York
Chief subway engineer city of Chicago and construction engineering on traction matters for cities of Pittsburgh, 1910, Providence, Los Angeles, San Francisco, 1911, Toronto and Cincinnati, 1912. Appraised properties of Seattle Electric Company, Puget Sound Electric Railway Company, Southern California Edison Company, Los Angeles, 1911.
Chicago Telephone Company’s System, 1911. International Railway Company, Buffalo, New York, 1911.
Metropolitan Saint Railway System of Kansas City, Toronto Saint Railway, and Lincoln (Nebraska) Telephone
& Telephone Company, 1913. Mountain States Telephone & Telephone Company, Denver, 1914.
Denver Tramway Company, 1915.
Brooklyn R.T. Company surface lines, 1917-1918. Chosen by the Citizens’ Terminal Plan Committee of Chicago to review plans submitted by Pennsylvania Railway Company and others for terminals and to recommend a comprehensive system of steam railway terminals for city.
Member of Chicago Railway Terminal Commission until 1921. Member Traction and Subway Commission, 1916-1917.
Retained by Massachusetts Public Service Commission to report on rys. and by Bay State Railway Company, Boston, 1916-1917.
Adviser to Des Moines, Omaha, Winnipeg, Sacramento, New Orleans, Detroit, Harrisburg, Rochester, Syracuse, Jersey City, Toronto, et cetera President The Arnold Engineering Company Inventor of combined directconnected machines, a magnetic clutch, storage battery improvements, and new systems and devices for electrical rys. Pioneer in alternating current, direct current and in single phase electric traction systems
Member Naval Consulting Board. Member board of managers Lewis Institute. Member, 1937, was also delegate for Institute at International Electrical
Member, 1927, and received Washington Award, 1929, “for devoted, unselfish and preeminent service in advancing human progress”. Member American Association for the Advancement of Science (vice president), American Society Promotion Engineering Education. Member of Inventors Guild, Aeronautical.
Clubs: Engineers’ (New York).
Married Carrie Estelle Berry, January 14, 1886 (deceased). Married second, Mistress.