Hi, his battalion was 21st:
SHIPLEY, J J
Rank: Private
Service No: 58422
Date of Death: 05/03/1919
Age: 23
Regiment/Service: Manchester Regiment, 21st Battalion.
Grave Reference: IV. A. 27.
Cemetery: CAMBRAI EAST MILITARY CEMETERY
Additional Information:
Husband of Susan Shipley, of Grange Cottage, Amcotts, Doncaster.
I haven't got access to the service records on Ancestry so I can't help with that one. Hopefully someone with access will be along soon. Many of the srvice records were destroyed in the Blitz in WW2 so it is a bit of a lottery whether they are available.
Hope this helps
Pete