Well done Gerry - this work should unearth lots of little mysteries - hopefully!!
Is the old part closed at the moment or was it just a case that you weren't near the entrance to it?
The following details are from the CWGC website for O.S., C. E. Campbell, the only CWGC burial in Old DalbethName: CAMPBELL
Initials: C E
Nationality: United Kingdom
Rank: Ordinary Seaman
Regiment/Service: Royal Naval Volunteer Reserve
Unit Text: R.N.Depot (Crystal Palace)
Age: 19
Date of Death: 18/10/1918
Service No: Clyde Z/9903
Additional information: Son of Ellen Campbell, of 52, Rose St., Garnethill, Glasgow, and the late John Campbell.
Casualty Type: Commonwealth War Dead
Grave/Memorial Reference: West side. 396.
Cemetery: GLASGOW (DALBETH) ROMAN CATHOLIC CEMETERY
http://www.cwgc.org/search/casualty_details.aspx?casualty=665365Anne