John Louis Emil Dreyer (1852–1926)
Born 1852 CE, died 1926 CE.
John Louis Emil Dreyer (13 February 1852 – 14 September 1926), also Johan Ludvig Emil Dreyer, was a Danish astronomer who spent most of his career working in Ireland. He spent the last decade of his life in Oxford, England.
Text from the Wikipedia article John_Louis_Emil_Dreyer, licensed CC BY-SA 4.0.