Not sure why I didn't remember this. From Theodore Wolbach, 16th OVI:
Camp Tiffin--Mustered into Service--Incidents of Camp Life.
The companies that were to constitute the 16th Regiment Ohio Volunteer Infantry, had all gathered into camp, had their places assigned to them, and had settled down to the routines of camp life, with, perhaps a little more extravagance in the culinary department than was afterwards observed, and less of that self-reliance and individual independence that characterized the men of the regiment in later years. Discipline was established. The men were drilled by those that had a smattering of the tactics. During drill hours the woods and fields in the vicinity of camp resounded with the tramp of many feet and the commands of the officers.
During the month of October, at a time when the weather was very beautiful, a strange officer appeared in camp; the trainings of a course at West Point had left their marks upon him--a hard, severe countenance, keen blue eye, a walk and carriage of person that was faultless. It was Captain Belknap of the regular army, who had come to muster us into the service of Uncle Sam.
One company at a time was called into ranks. The mustering officer, surgeon and company officers took their position in front. The roll of the company was produced, and each man as his name was called passed up to the examining surgeon, raised his hands above his head, touching the palms, and stood in that position while the surgeon went through a process of feeling and sounding the person, examining the teeth, &c. The age of each man was put down as he gave it. If there was any deficiency detected, the man was ordered to step aside, and afterwards received an extra examination. When this part of the business was completed, the men being in line, the mustering officer in
a loud, clear voice, informed the men that he was about to administer to them an oath, that, if they lived, would be binding on them for three years, unless sooner discharged, and any man that did not wish to take the oath should advance three paces to front. After a slight pause, no one advancing, the right hands were raised, the oath administered, and the company marched to their quarters. In only one instance did any man take advantage of the mustering officer's proposition to step from the ranks before the final oath was administered, and that occurred while one of the Wayne county companies were being mustered. One individual stepped from the ranks, when, lo! The whole company broke ranks and chased him out of camp. The Drum Major, Jerry Owens, being near by, seized a drum and beat the Rogue's March during the stampede.