1821-1885, astronomer; astrophysicist; optical instrument maker, Polish Prazmowski, Adam Jozef Ignacy 1821 - 1885
1792-1871, mathematician and astronomer, English; British Herschel, Sir John Frederick William 1792 - 1871
1830-1899, professor of mathematics and engineering; astronomer, British Moore, Benjamin Theophilus 1830 - 1899
1847-1913, astronomer; book collector, British; Scottish; French-born Lindsay, James Ludovic 1847 - 1913