Erck, Wentworth (1827-91), born Dublin of Huguenot descent, he was educated at Rugby school and Trinity College, Dublin becoming magistrate for Co Wicklow. Developing an interest in astronomy from an early age he set up an observatory at his house at Sherrington, Bray. Here using a 7.5-inch refractor by Alvan Clarke, formerly owned by Rutter Dawes, he mainly observed the Sun and planets. On his death the instrument passed to W.H.S. Monck (see ‘Obituary: List of Fellows… , MNRAS, 51 (1891), 194-6).