On August 18 , 1862 , Humphrey , his wife , and two of their children were killed in the Battle of Lower Sioux Agency , where he was the physician for the Sioux Tribe .
In 1857 , Humphrey served in the Minnesota Territorial Council .
On August 18 , 1862 , Humphrey , Humphrey 's wife , and two of their children were killed in the Battle of Lower Sioux Agency , where he was the physician for the Sioux Tribe .
In 1857 , Humphrey served in the Minnesota Territorial Council .