Hi
There is an Albert Edward Watts who enlisted on 27th Oct 1815 at Hull into RCH. He gives his address as Hull, says he is single and has previously served in the 1 and 2 First Yorks for 18 years 85 days. He is a post office cleaner. He gives his next of kin as William Watts. He left the army on 24.6.1919, so survived the war.
Ancestry have his full record of service in the First Yorks.
Could this be him?