I have a GGUncle who lied about his age and joined the 106th New York at age 15. . His mustering in date was September of 1864. Am I correct in assuming the muster date is when he signed his enlistment papers. If so how long would it typically be before he joined the regiment l am trying to find out which engagements he may have been in . The only time he was not with the regiment was May of 1865 when he was hospitalized. Sorry for any punctuation or spelling errors . I am doing this on my phone