English Wikipedia - The Free Encycl...
Download this dictionary
Alvan Graham Clark
Alvan Graham Clark (July 10, 1832 – June 9, 1897), born in Fall RiverMassachusetts, was an American astronomer and telescope-maker. He was the son of Alvan Clark, founder of Alvan Clark & Sons.

See more at Wikipedia.org...


© This article uses material from Wikipedia® and is licensed under the GNU Free Documentation License and under the Creative Commons Attribution-ShareAlike License