Found the following while searching the 1870 Arapahoe Co., CO census online:
Charles Cassell, 31, b. New York, laborer
James Cassell, 27, b. New York, laborer
I downloaded the GIF image of the census page. If it's of use to you, send
me private e-mail and I will forward it.
Kathleen Cooper - Carlsbad (San Diego), CA
kathleencooper(a)bigfoot.com