 A Charles Hatfield enlisted in Company F of the 23rd Iowa Infantry, but was supposedly rejected on September 19, 1862.It may be possible that Charlotte Hatfield, also known as Elsa Guerin, failed on her first attempt to enlist, but was successful on a second attempt.No personal record could be found to support this theory 

Because there are many different versions of the story, it may be likely that Charlotte Hatfield's story "was a composite of the experiences of several woman settlers."