found: NUCMC data from Rutgers Univ. Libr. for Mitchill, S.L. Papers, 1794-1827(John McComb)
found: Dictionary of American biography, v. 11, 1943, via Internet Archive, October 11, 2016(McComb, John; b. Oct. 17, 1763; d. May 25, 1853; architect, of New York, N.Y.; son of John McComb (d. 1811), who was city surveyor of New York City; street commissioner of New York City, 1813-1821)
found: Plan of the city of New York, 1789, via Library of Congress website, October 11, 2016(engraving, signed I M. Comb Junr. delt.)
found: Stillman, Damie. "McComb, John, Jr.," in American National Biography Online, Feb. 2000, accessed October 11, 2016("McComb, John, Jr. (17 Oct. 1763-25 May 1853), architect, was born in New York City, the son of John McComb, Sr., a builder and architect ... The father ... was a city surveyor of New York from 1784 to 1792 ... Trained under his father, McComb first appears as an architect in 1790 ... For the next thirty-five years he practiced architecture in New York, becoming the leader of the profession there ... McComb was street commissioner of New York (1813-1821) ... a New York agent for the commissioner of public buildings in Washington (c. 1815-1819); a member of the American Academy of Fine Arts (1816-1828) ... a longtime member of the General Society of Mechanics and Tradesmen (from 1787) and its president in 1818"; retired from active practice as an architect in 1826; continued to live in New York until his death) - http://www.anb.org/articles/17/17-00568.html
found: New-York Historical Society Museum and Library website, October 11, 2016(Guide to the John McComb Architectural Drawings Finding Aid, 1766-1829: "John McComb (Oct. 17, 1763-May 25, 1853) was the principal architect in New York City between 1800 and his retirement in the 1820s ... McComb was made a Street Commissioner and a City Surveyor of New York in 1813, and served in that capacity until 1821") - http://dlib.nyu.edu/findingaids/html/nyhs/mccomb/bioghist.html
found: Union List of Artist Names Online, October 11, 2016(McComb, John (American architect and surveyor, 1763-1853))
found: OCLC, October 11, 2016(access points: McComb, John, 1763-1853; McComb, John; McComb, John, Jr.; McComb, John, Jr., 1763-1853; M'Comb, John, 1763-1853; MComb, John, Jr.; Comb, I. M.)