The listing for Ebenezer Jack, from the database U.S. Civil War Records, available at Ancestry Library Edition, indicates that he was commissioned an officer in Company D of the Ohio Tenth Cavalry on 03 Mar 1863, and mustered out on June 19, 1863. His tombstone inscription on his grave marker at Oakland Cemetery states that Lieut. E. G. Jack died in Nashville, Tennessee on June 29, 1863, at the age of 51 years, 5 months, and 5 days.
An article in the July 25, 1905 Sandusky Register gives an account of two of Lieut. Jack’s daughters, Mrs. Louise J. Woods and Mrs. Effie Kennedy, who came to Sandusky from Indiana and Illinois, to tend to the graves of their parents. The article describes how Lieutenant E. G. Jack opened a recruiting office on Columbus Avenue during the Civil War. Through his efforts, hundreds of men were recruited.
Ebenezer G. Jack was born in Pennsylvania. Records at FamilySearch tell us that he married Esther Thomas on March 7, 1838, in Wayne County, Ohio. The children of Ebenezer G. and Esther Thomas Jack were: Mrs. Louise J. Woods, Mrs. Effie Kennedy, Col. J. H. Jack, Capt. Alvin A. Jack, and Mrs. Nellie Hall.