Clackamas County Doane Cancels. Four 1906 postcards with very fine strikes of Clackamas County Doanes from Cazadero (1904-1918), Dodge (1896-1914), Estacada (1904-date) and Barton (1896-1935), Barton card originated at Mayville (Gilliam County) and also has a Mayville Doane, Very Fine (no photo). Estimate  $50 - 75. $0