Black Storm Comin' by. Diane Lee Wilson - old hardcover

Forced to tend to his mother and two sisters by himself while on the wagon train to California, biracial Colton Wescott and his family have great difficulties and are shunned by others, thus Colton decides to join up with the Pony Express in the hopes of making money for his family, knowing that he is risking his life if his true identity is ever discovered. Reprint.