Y., who contributed to this work the two chapters on the history of the townships of Greenburgh and Mount Pleasant, is a native of Somerset County, N. J., and a graduate of Rutgers College and of the Theological Seminary of the Reformed Church, at New Brunswick, N. J. After completing his course at the Seminary, in 1848, he was settled towards the latter part of that year as pastor of the Reformed Church of Griggstown, N. J. His personal connection with Westchester County dates back to 1855, when he accepted the call of the Second Reformed Church of Tarrytown, and entered upon his duties as pastor. Having lived since then in themid'it of the historical scenes of which he has written, and having enjoyed the friendship of many whose ancestors had long lived there before them and had borne a prominent part in the great revolutionary struggle, he has had peculiar opportunities of information in regard to the localities described.

Among other productions of Dr. Todd's pen may be mentioned his " Discourse on the Character and Death of Washington Irving," 1859; "Memories of the Rev. Peter Labagh, D.D., with Notices of the History of the Reformed Protestant Dutch Church in North America," 1860 ; "The Law of Spiritual Growth, a review of Boardman's 'Higher Christian Life,'" in the Princeton Review of October, 1860 ; " The Man for the Times," an Oration delivered before the (iovernor of the State, the Trustees, and the Alumni of Rutger's College, at the Dedication of Geological Hall, New Brunswick, N. J., June 18, 1872; "The Posture of the Ministers and People of the Reformed Dutch Church during the Revolution," prepared by request of a committee of the < Jeueral Synod, and published by order of the Synod in the volume of Centennial f>it<- courses, 1876; "The Good Fight and the Victor's Crown,"' a Memorial Discourse on the Life, Character and Services of the Rev.