Looking for information on brothers Charles and William Slack, who have been mentioned at considerable length in my g-g-grandfather's journal(David Cooper), soon to be published. I would very much like to find out more about them if possible. They were very good friends and companions to my relative at the time, traveling with him through some serious adventures enroute to the California Gold Rush (1850). The younger of the two was Charles, apparently born around 1830 in Norvich, Vermont. I would very much like to find out more about the Slack brothers if possible, and to share some wonderful stories I have about them.