He published History of the Jews in Great Britain (1851) and Vestiges of the Historic Anglo-Hebrews in East Anglia (1870).
He was instructed at Pryerosl, Grodno, and Kalwarya in talmudic and rabbinical learning, and also acquired Russian and German.
In August 1837, during a visit to Liverpool, he was induced to carefully study the Hebrew New Testament, with the result that on 13 April 1838 he was baptised a member of the Church of England.
Three months later, the Bishop of Kildare obtained for him the incumbency of Glasnevin, near Dublin, and made him his examining chaplain.
During his travels he made the acquaintance of many celebrated men, among whom were August Neander, Felix Mendelssohn Bartholdy, and Giuseppe Caspar Mezzofanti.