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John O. Hanscom, John P. Sheldon, Thomas Thomson

Firm Notes

This engineering-focused construction firm operated in San Francisco, CA, c. 1890. In 1890, its board of directors was made up of Thomas Thomson, John P. Sheldon, John O. Hanscom, Charles Hanson and W.J. Adams. Thomson was the company’s president, Sheldon, its vice president and treasurer, and Hanscom, secretary. The office of the American Bridge and Building Company was at 9 Mission Street in San Francisco. (See Langley Directory of San Francisco, California, for 1890,p. 1452.)

PCAD id: 7143