In 1981, Tredway wrote a book review in the ''Indiana Magazine of History'' of a work similar to his own, ''Civil War Iowa and the Copperhead Movement'' by Hubert H. Wubben.<ref>Gilbert R. Tredway, Review of Hubert H. Wubben, ''Civil War Iowa and the Copperhead Movement,'' ''Indiana Magazine of History'', Vol. 77, No. 1 (March 1981), pp. 94-95.</ref> | In 1981, Tredway wrote a book review in the ''Indiana Magazine of History'' of a work similar to his own, ''Civil War Iowa and the Copperhead Movement'' by Hubert H. Wubben.<ref>Gilbert R. Tredway, Review of Hubert H. Wubben, ''Civil War Iowa and the Copperhead Movement,'' ''Indiana Magazine of History'', Vol. 77, No. 1 (March 1981), pp. 94-95.</ref> |