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John Morris Weiss

chemical engineer.

John Morris Weiss, American chemical engineer. Awarded Howard N. Potts gold medal by Franklin Institute, 1922; Academy of Political Science, American Gas Association, Chemical Committee, 1921-1931.


Weiss, John Morris was born on March 11, 1885 in Philadelphia, Pennsylvania, United States. Son of Julius and Frances (Henlein) Weiss.


Graduate Central High School, Philadelphia, 1901. Bachelor of Science, University of Pennsylvania, 1905.


Madeleine Kroeplin, May 11, 1938. Research chemist Barrett Company, Frankford, Pennsylvania, 1905-1906, chief chemist, 1907-1911. Chief chemist, Barrett Company, New York, 1911-1917.

Manager research department, 1917-1921. director of development, 1921-1922. President and treasurer Weiss & Downs, Incorporated, New York New York 1923-1944. Partner John M. Weiss and Company, consulting chemical engineers, since 1943.

First vice-president and director Calorider Corporation, Stamford, Connecticut, since 1937. Registered engineer in New York and New Jersey.


  • Author: The Technical Organization—its Development and Administration, 1924. Contributor to scientific journals. Special writer for Wall St. Journal Patentee.


Member Pennsylvania National Guard Engineers Corps, 1909. Fellow American Institute Chemists (ex-president New York section, chairman ethics committee, 1924-1926. Member American Chemical Society (chairman New York section 1934.

Member committee control of nitrogen in Germany. National Engineer Council, 1945. Member American Society Testing Materials (Chairman of Commission D 8, 1932-1944, publications committee 1933-1939, Chairman of Commission D 16, 1940-1946).

Association Cons. Chemicals and Chemical Engineers (director 1929-1934 and 1945-1948), Franklin Institute (science and arts committee since 1911), General Alumni Society of University of Pennsylvania, Federal, New York Company grand jury associations, National Research Council (insulation committee), National Safety Council, National Society Professional Engineers, New York State Society Professional Engineers (director 1931-1933), New Jersey State Society Professional Engineers, Commercial Chemical Development Association. Society of Chemical Industry (London), Chemists. Member of advisory board Indiana Educated, Chemical and Engineering News, I.E.C., 1944-1950.


Married Bertie Heine, May 18, 1909 (died August 17, 1937).; married second.; children: Robert Paul, Francis Benjamin.

Julius Weiss

Frances (Henlein) Weiss

Bertie Heine


Robert Paul Weiss

Francis Benjamin Weiss