Images of America: Hemphill County treats readers to over 200 photographs gleaned from the archives of the River Valley Pioneer Museum in Canadian, Texas. Each image, compiled and described by Hemp...ver maisImages of America: Hemphill County treats readers to over 200 photographs gleaned from the archives of the River Valley Pioneer Museum in Canadian, Texas. Each image, compiled and described by Hemphill County native Susan Owens Caudle, provides a unique and interesting window into Hemphill County's past.ver menos