One Company, Company A, had previously been authorized and was but partially recruited. On July 22nd the other five companies of the regi ment having been recruited up to strength, the various recruiting stations throughout Chicago were instructed to assign all recruits to Company F. Captain Ralph C. Harris was given command, and Lieutenants Ernest V. Lippe and Chester L. Brundage were assigned to the company. Preliminary drilling was done during the evenings at the Municipal Pier, Chicago, and on the morning of July 25th the company reported here for duty in response to the President's call and under the orders covering the mobilization of the National Guard. On August lst the regiment was inspected by the Federal Authorities, and on August 7th was mustered into Federal Service.