Westward Ho

Whit Ballard and his gang of outlaws steal a herd of cattle from the Wyatts, a family of drovers, murdering the parents. In the aftermath, Ballard takes a shine to one of the boys, Jim (Frank McGlynn, Jr., as an adult) and decides to take him along for kicks, but leaves behind his brother John (John Wayne, as an adult). Once grown up, in an effort to chase down the men who killed his parents and kidnapped his brother, John organizes a frontier Vigilante group of cowboys (who sing, wear black and ride white horses) to bring outlaws to justice, and they become renowned for their success.