A citizen of Chicago, he was at one time the Democratic candidate for Sheriff of Cook County, in which is the city of Chicago, during the earliest part of the war he was very active in helping to raise what was called the Irish brigade. He afterwards became a bitter democratic partizan and was connected with the Sons of Liberty. Just before and during the Convention be received into his family several rebel soldiers who were there during the day and night time, making cartridges for the expected release of the rebel prisoners of war at Camp Douglas. He was arrested in his own house on the morning of the 7th of November, as was also his son, and two Rebel soldiers and taken to Camp Douglas. In his house and on his premises were an immense numbers of guns of several kinds and also immense military stores, consisting of powder, buckshot, cartridges, with two or three cast braces of army revolvers, all these guns and pistols were loaded and ready with the exception of being capped. Charles Walsh is of Irish extraction and about forty years of age, and a fine looking man. He is generous, impulsive, rather easily influenced, agreeable in conversation, and except in the character he assumed as an enemy to his country was possessed of qualities which would win for him many friends. There are as bad men, in our opinion, as Mr. Charles Walsh, to day at liberty and talking treason in our midst.] Of the remainder of the officers of the Michigan, they thought their well-known Democratic faith and sympathy with the rebellion, would prevent them from seeing or knowing _too much_, until too late to avoid the disaster. Of these last, the conspirators did not seem to entertain the least fear, some of them being Southern men by birth, and at most, but passive in their fidelity to the government. The men of the vessel who were loyal, were also tampered with, and the rebels in Canada looked for assistance from them, and claimed that some of their own men from Canada had enlisted on board of her for the purpose of aiding to capture her. Of these rebels, however, there were but few. As the writer has stated before, the attempt on the steamer Michigan was to be simultaneous with that at Chicago, Ill., and while the rebels and their friends were assembling in Chicago, they were also gathering in Sandusky City, for the capture of the Michigan. The exact number of conspirators in Sandusky, at that time, is not known to the writer, nor the details of their plans; but let it suffice to say, _that they were there, armed and ready_. When the time of action arrived, however, the engineer and his accomplices were no where to be found, and after waiting for nearly two days, the rebel portion of the conspirators, with the exception of Capt. Beall, returned to Canada. On their return, they said that the persons whom they had bribed were afraid to toe the mark--that is, were afraid to carry out their infamous and hazardous part of the contract.