Castlemon - Frank on the Lower Mississippi - New paperback or softback - X555z

Castlemon - Frank the Young Naturalist - New paperback or softback - - X555z

Castlemon - Frank on a Gun-Boat - New paperback or softback - 21 - X555z

Frank Among the Rancheros (Paperback or Softback)

Castlemon - Frank in the Mountains - New paperback or softback - 18 - X555z

Castlemon - Boy Trapper - New paperback or softback - 20 - X555z

Castlemon - Frank on the Lower Mississippi - New paperback or softback - X555z

Harry Castlemon - George at the Fort - New paperback or softback - 81 - X555z