Born at Athlone on March 2, 1807, his father being Captain Sillery, a native of Drogheda, and a Royal Artillery man, who died of wounds received at Talavera. Another notice says he was born at Slane, Co. Meath, and that members of his family still reside there. The poet became a midshipman, and went to India and China in that capacity, basing some of his longer poems on what he had seen there. He afterwards studied medicine at Edinburgh University, and published one or two religious works in prose. He died in Edinburgh on May 16, 1837, aged 30. Some of his Scotch pieces are popular, and he is in several Scotch anthologies.