Biographies are a good source of information, but you must remember that often in County or State Histories, the information was provided by the person in the biography. Many of these biographies provide the history of how your ancestor came to his present location, along with others who traveled with him or her.
Curry County Historical Society Biographies
History of Coos and Curry County, by Orville Dodge
Excerpts from the Curry County Echoes,Volumes I & II, by the Curry County Historical Society