Here are a number of hits from a Goggle search:
https://www.google.com/search?client=safari&rls=en&q=www.google.com&ie=UTF-8&oe=UTF-8#rls=en&q=Union+Lieutenant+Thomas+J.+Myers

I did a search for a Lt. Myers and found the same information as found in this hit:

“the only Lieutenant Thomas Myer in the Union army was unmarried, a second lieutenant in the 17th Indiana Infantry and stationed at Nashville during the time of Sherman's march through South Carolina.”
http://civilwartalk.com/threads/shermans-march-to-the-sea.3781/page-3