Nehemiah Hawkins (1833 – January 15, 1928) was an American inventor, publisher and author (pen name Theodore Audel) born in Providence, Rhode Island. He started working with the G&C Merriam Company of Springfield, MA. In Chicago he established a magazine called Steam — soon sold and incorporated into Power  — then moved to New York. He was survived by a son and two daughters.
He wrote (or commissioned and published under his own name) many of the popular Audel's Guides popular with engineers and craftsmen and published by Theodore Audel & Company of New York. He sometimes used the pseudonym William Rogers (a likely reference to Roger Williams).
The content of his books published prior to 1923 is now in the Public Domain.
Works in part or whole by N. Hawkins
(In order by year; years may not be first editions.)
- Handbook of Calculations for Engineers and Firemen. 1889.
- Maxims and instructions for the boiler room. T. Audel, 1891.
- Aids to Engineers' Examinations. 1894. 210pp.
- New catechism of electricity: a practical treatise. T. Audel & Co., 1896. 541pp. "This work is respectfully dedicated to Thomas A. Edison of Llewellyn Park, N.J."
- Hawkins Indicator Catechism. A Practical Treatise for the Use of Erecting and Operating Engineers, Superintendents, Students of Steam Engineering, Etc. T. Audel, 1899.
- Aids to engineers' examinations: Prepared for applicants of all grades, with questions and answers. A summary of the principles and practice of steam engineering. T. Audel, 1901. 210pp.
- New catechism of the steam engine:with chapters on gas, oil and hot air engines. T. Audel, 1902. 437pp.
- Self-Help Mechanical Drawing for home study. T. Audel, 1902. 287pp.
- The progressive machinist: a practical and educational treatise, with illustrations. T. Audel, 1903. 336pp. (Alternate title: 'The Advance Machinist'.)
- (as William Rogers). Pumps and hydraulics, Part 1. T. Audel, 1905. 419pp
- (as William Rogers). Pumps and hydraulics, Part 2. T. Audel, 1905. 424pp.
- Hawkins' mechanical dictionary: a cyclopedia of words, terms, phrases and data used in the mechanic arts, trades and sciences. T. Audel, 1909. 684pp.
- Hawkins' electrical dictionary: a cyclopedia of words, terms, phrases and data used in the electric arts, trades and sciences. Audel, 1910. 537pp.
- Hawkins Electrical Guide: Alternating currents and alternators. T. Audel, 1914. 1266pp.
- Hawkins and Staff, Hawkins Electrical Guide Number One. New York: Theo. Audel, 1917.
- Hawkins, Theodore Lucas, Frank Duncan Graham. Audels new marine engineers guide: a practical treatise on marine engines, boilers and auxiliary machinery..... Theo. Audel, 1918.
- Hawkins, Edwin P. Anderson. Audels mechanical dictionary for technical trades, arts and sciences: defining 17000 words, terms, phrases, formulas, rules. Theo. Audel, 1942. 948pp.
|Wikimedia Commons has media related to Scans from 'New Catechism of the Steam Engine', 1904.|
- Goodall, George (Nov 18, 2008). "Hawkins and Audel". Facetation. Retrieved 5 January 2014.
- "Nehemiah Hawkins". New York Sun. Jan 17, 1928.
"Mr. Hawkins ... was seventh in descent from Roger Williams, founder of the Providence Plantation."
- The History of Audel's. To be continued...
- Open Library bibliography
- Public Library of Brookline (1904). Bulletin, Vol. 11–13. Brookline, Mass.: The Library. p. 121. Retrieved April 30, 2011.
-  E.g.,see title page
- Nehemiah Hawkins (1896). New catechism of electricity: a practical treatise. Theo. Audel & Co.
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