Founding his firm

Early in his career he was a $4 per week clerk on Wall Street. He later established his own firm, Carl H. Pforzheimer & Co. at the age of 23 in 1901.^[1] After the dissolution of Standard Oil Company in 1911, Pforzheimer was a "pioneer" in the trading of old Standard Oil shares and underwriting issues of companies that resulted from the break up of Standard Oil .^[1] After he formed Carl H. Pforzheimer & Co. he focused on the oil and gas industry, The NY Times writes that the firm was "instrumental in the underwriting of the securities of a number of oil companies at a time when Wall Street had developed little interest in the petroleum industry."^[1] He was president of the Petroleum and Trading Corporation.^[1]

Curb Association

Pforzheimer was a "charter member" of the Curb Exchange in New York, and his firm also belonged to the New York Stock Exchange.^[1] On March 16, 1911, the Curb Association elected its first Board of Representatives. The board corresponded to the Governing Committee of the Stock Exchange and had the "task of keeping the outside market in order." Members included Pforzheimer, E. S. Mendels, and others.^[5] In June 1914, he resigned from the board of representatives of the Curb Association. Pforzheimer and two other retirees had composed the Complaint Committee, had recently had their charges against Secretary Franklin Leonard dismissed by the full board. Leonard had offered to resign if the three complaint committee members resigned as well. Pforzheimer did not drop his membership in the organization.^[6]

As of 1922, his firm Carl H. Pforzheimer & Co. was located at 25 Broad St. In the Broad Exchange Building. Specializing in Standard Oil and miscellaneous securities, firm members included Carl Pforzheimer and his brothers Walter and Arthur.^[7]

Later positions

In February 1951 he was elected to the twenty-five person board of trustees at the New York Public Library, after serving as a member of the library committee since 1949. He also joined the library's finance committee.^[8] He was also a trustee and vice chairman of the Institute of the Public Administration. He helped form the Purchase Community, Inc., serving as its first treasurer for 25 years. He was also founding chairman of the Town of Harrison Finance and Advisory Committee.^[1]

He was a member of the advisory committee to the Commissioner of Public Welfare and of the Joint Committee on Public Assistance. He was a director of the Westchester County Association. He was chairman and treasurer of the Westchester County of Social Agencies, Inc., was on the Westchester Cancer Committee, and was a director with the Westchester Tuberculosis and Public Health Association.^[1]

From 1931 until 1935, he was chairman of the Westchester County Emergency Work Bureau. In 1935 he resigned from that position to become chairman of the Westchester County Commission on Government. From 1939 until 1942, he was the Westchester County Planning Commission's chairman. He was a governor of the White Plains Hospital, and a trustee of the United Hospital of Port Chester.^[1]

Book collection

Pforzheimer was an avid collector of rare books, collecting manuscripts and books over decades and housing them in an office building in Manhattan as the Pforzheimer Library, with access only allowed to specialized scholars.^[10] In 1923, he purchased a Gutenberg Bible for around $60,000. Other key works included the writings of Percy Bysshe Shelley.^[1] In 1940, he published "The Carl H. Pforzheimer Library of English Literature 1475-1700" as a three-volume catalogue. Over the next two decades, the publication was used as a reference book by collectors and scholars.^[1] In 1951, the New York Times called his library literature "considered one of the great rare book collections in private hands."^[8] Roger Stoddard, curator of rare books at Harvard College Library later called his collection "the greatest collection in private hands", including the first complete Bible in English and 1535 Coverdale Bible, and various Shakespeare plays.^[10] In 1987, his son Carl H. Pforzheimer Jr. and grandson Carl H. Pforzheimer III donated the Pforzheimer Collection of Shelly and His Circle to the New York Public Library, which included around 25,000 books, letters, manuscripts, and other related objects.^[11]

In 1986, a large portion of the New York-based Pforzheimer collection of English books and manuscripts was purchased for the University of Texas, in "what book dealers said was the largest sale of rare books ever made." The transaction included the first book printed in the English language from 1475, as well as more than 1,100 books and 250 manuscripts from the years 1475 to 1700 collected by Pforzheimer.^[10]