The name of John Disbrow (vestryman from Mamaroneck) occurs in the church records of Rye, A.D. 1710. The parochial clergy appear to have officiated here at a very early period, as Madame Knight incidentally mentions in 1704, "that one Church of England parson officiated in all these three towns," viz., Rye, Mamaroneck and Horseneck, "once every Sunday in turns throughout the year." The French clergy of New Rochelle, also performed occasional services here ; this we learn from the records of Trinity church.

Upon the 12th of April, 1814, the present parish was organized, and incorporated in accordance with the act passed on the 17th of March, 1795. At the first meeting of the congregation, held on Tuesday in Easter week, 181 4, the following gentlemen were chosen officers for the ensuing year, viz. : John Peter de Lancey and Peter Jay Munro church-wardens. William Gray, Benj. Hadden, Henry Gedney, Samuel Deal, Abraham Guion, and Matthias G. Valentine, vestrymen.6

To this church is attached a handsome parsonage and grounds. The communion silver consists of a flageon and a double set of chalices and patens, inscribed

"St. Thomas's Church, Mamaroneck, New York, 1837."

Besides a smaller set for the private administration of the holy Eucharist. During the incumbency of the present rector, the church has undergone considerable repairs; the parsonage has also been purchased and greatly improved. In 1835-6, Trinity church, New York, liberally endowed this church with the sum of $Soo. The first delegate from this parish to the Diocesan Convention was Guy C. Bayley. Esq.