Below is a table showing the attendance of the three-year 16th Ohio soldiers at the various post-war reunions held by the regiment. Soldiers drafted for a period of nine months are also considered part of the three-year regiment. Initially, the 16th Ohio Reunion Association scheduled reunions every few years but beginning in 1880 held them annually. This website has detailed minutes and attendance information for reunions #1 through #30, #34 and #38. Evidence shows an additional five, #39 to #43, were also held but no detailed information has been found on these. It is not known if any were held after #43 which occurred in 1918.

Attendance is denoted by the soldier's Company letter appearing under a reunion column. This Company is determined directly from the reunion minutes. Since some soldiers served in more than one Company, their attendance was sometimes rostered under one or another of those Companies.

Of the 1206 soldiers who served in the three-year 16th Ohio Volunteer Infantry, 504 are known to have attended at least one reunion (42%). Ten reunions were held in Wooster, Ohio, where the regiment first formed and trained in the fall of 1861. Three were held in Millersburg, Ohio, the city providing the next greatest number of men to the regiment. Here is the detail on known reunion sites: