He accompanied Lieutenant George Derby when he attempted to reach Fort Yuma with supplies by boat .
A ships carpenter , David C. Robinson , came to the Colorado River in 1850 on the army transport schooner , Invincible commanded by captain Alfred H. Wilcox .
David C. Robinson accompanied Lieutenant George Derby when David C. Robinson attempted to reach Fort Yuma with supplies by boat .
A ships carpenter , David C. Robinson , came to the Colorado River in 1850 on the army transport schooner , Invincible commanded by captain Alfred H. Wilcox .