Up to the breaking out of the war Mr. Dickman had acted with the Democratic party, but when treason culminated with rebellion, he joined those of his political associates who disregarded party lines and united with the Republicans in forming the Union party. Although fitted for college with Roger A. Pryor, of Petersburg, and though his parents remained in Petersburg during the war, Mr. Dickman took strong ground against the rebellion and all who gave it encouragement. In 1861, he was nominated for member of the State Legislature from this city, and was elected by a large majority. In that body he was made chairman of the Committee on Railroads and also placed on the Judiciary Committee. In the latter capacity the subject of military arrests came under his notice, and his speech on that subject was considered so able and exhaustive an exposition of that subject that it was published at the request of the Judiciary Committee and widely circulated through the State. At the close of his legislative term he formed a law partnership with Judge Spalding, which still continues, and re-entered assiduously on the duties of his profession, devoting most of his attention to admirality, marine insurance, and patent cases. In these he has been very successful. In 1867, President Johnson appointed Mr. Dickman United States District Attorney for the Northern District of Ohio. The appointment was received with satisfaction by all shades of political opinions, and Mr. Dickman continued to perform its duties to, the approbation of all having business with the court until early in 1869, when he resigned the position in order to confine himself more closely to his private practice. It is admitted on all sides that the duties of his office were faithfully and ably performed. Of the great number of criminal cases brought before the court by him only two escaped conviction, thus evidencing the merit, care and attention given to the getting up of the cases for trial. Such uniformity in securing conviction is very unusual. Mr. Dickman is a gentleman of fine literary tastes, extensive reading, and rare classical attainments. The relaxation from his legal duties is found mainly in his library among the highest class of authors. His frequent orations for the literary societies of Brown University and the University of Michigan, and other occasions, have been marked by scholarly finish and have always been received with approval. During the existence of the Knickerbocker Magazine, before its decadence, he contributed to its pages a series of valuable articles on "Butler's Horae Juridical," and on "The Revolution of 1688."