Scottish-born gardener and botanist. Trainee gardener, later foreman, on the estate of the earl of Camperdown, Scotland. Emigrated to Ireland, 1828. Foreman, Trinity College Garden, Dublin, 1829–34. Botanist to the Ordnance Survey of Ireland, 1834–8. Director, Botanic Garden, Glasnevin, 1838–79. Specialist in mosses and liverworts. PhD Zurich 1863. (DNB, R. Desmond 1994).
Sources: Desmond, Ray 1977 DNB (See the bibliography for full references to sources)