I am looking for a Emma Reed that was married to a William Horton in Tennessee. I am looking for Info on her and their child possible named Mary.

I believe they were married before the 1917-18 WW1 draft and died before the 1920 census. The first document indicates "married with a child" and then in the 1920 census My grandfather was indicted as a widower. She may have still been alive but they could have divorced and he just indicated widowed for the census.
Thanks