"shoot Pomo braves"

 The Pomo are Native Americans from the northern part of California. At the beginning of the nineteenth century it was estimated that between 10,000 and 18,000 Pomo lived along the Pacific coast, making up seventy tribes and speaking seven related languages. After contact with European immigrants, their weapons and their diseases, the Pomo population rapidly declined, until by 1851 it was estimated that only 3,500-5,000 were left.

On 15 May 1850, 60-400 Pomo people were killed in a mistaken revenge attack by the 1st Dragoons US Cavalry, in an event now known as the Bloody Island Massacre.