James Grimshaw (1798–1857) was an Irish naturalist in the early 19th century.
Born in County Antrim, Grimshaw worked in his family's linen business. He married Mary Templeton, a daughter of the Irish botanist John Templeton.
Grimshaw was interested in mainly botany and wrote numerous scientific papers, including "Flora of the Cave Hill". He was a founding member of both the Belfast Natural History Society and the Botanic Gardens in Belfast. Part of his herbarium is now in the Ulster Museum.
References Nash, R. and Ross, H.C.G. The development of natural history in early 19th century Ireland in From Linnaeus to Darwin: commentaries on the history of biology and geology Society for the bibliography of Natural History 13:27-
External links Family Tree Ulster Museum Herbarium.