Possibly not him as it's the wrong regiment, but might be worth keeping in mind. I can't see the details as they are on Fold3 and you need a subscription
Thomas Eden
Age: 18
Birth : Abt 1853
Birth Place: Swell, Gloucester
Desertion Date: 1871
Publication Date: 3 Jul 1871
Regimental Number: 1291
Military Corps: 4th Dragoon Guards
If we assume that Thomas was in his 20s when he became a father, then he would be in his 60s or 70s during World War 1? 
I'm guessing this was just put here as Frank didn't know where else to put it and that he wouldn't have been in the army in WW1.
