This past August, historian Paul Hortenstine noticed that the “Official” list of Mayors failed to include the second term of Mayor Matthias Nicolls (Nicoll). He had served two non-consecutive terms, the first from 1671-1672, and the second from 1674-1675. Hortenstine was not the first to notice this discrepancy. In 1989, the New York Genealogical and Biographical Society published an article by Peter Christoph revealing that every mayor after #7 had been misnumbered. As Christoph pointed out, if a Mayor had two non-consecutive terms the practice was to assign them two numbers, starting with Thomas Willett, who was Mayor #1 and #3. He noted four other early Mayors credited with two terms.
We thought the error might have been due to a little-known hiccup in mayoral history. In July 1673, the Dutch (who had established the colony of New Amsterdam in 1625 and lost it in 1664), invaded and took it back. For fifteen months the colony (renamed “New Orange”) was under a Dutch “Council of War,” that restored the Dutch-style government of a council of Burgomasters and Schepens. As a result, there was not a “Mayor of New York” between July 1673 and November 1674, when the English Governor, Edmund Andros, reappointed Nicolls. Moreover, Nicolls had not been Mayor when the Dutch invaded, his successor, John Lawrence, had assumed that role. So, by all rights, Nicolls served two non-consecutive terms with another Mayor in the middle, making him Mayor #6 and #8. Thereby moving everyone else one place down the line. Lawrence was appointed Deputy Mayor in 1674, but also served another non-consecutive term as Mayor, the 2nd time in 1691, making him both #7 and #20 (under the corrected numbering system).