Fëanor was his half-brother and Fingolfin his full brother.
== Publikacije ==Njegova objavljena dela obsegajo "Meteorological Essays" (1823), "Essay on Artificial Climate considered in its Applications to Horticulture" (1824), ki opisujejo nujnost vlažnega ozračja v rastlinjakih tropskih rastlin in "Introduction to the Study of Chemical Philosophy" (1839).