I am searching for the Civil War service records of my great great grandfather George Chace (Chase) of Greenbush, Renssalear County, New York. Born in October 1844, George was 17 years old in 1861. After the war he was a tug boat engineer in New York City Harbor. Family lore claims he went to engineering school in Cleveland, Ohio and also served in the Union Army. Any information would be greatly appreciated.