I’m sorry this has taken so long. I passed on your request but only today have I caught up with Putterlad for the answers. These are the only Casey records he has
Chilton - Patrick Casey, father John, age 35 injured 13/09/1911, died 20/09/1911
Seaham - Michael Casey born 1881 injured 29/09/1886
Derwent - John Casey born 1847 injured 24/10/1886
Easingthorne - John Casey, age 48 injured 11/11/1903
Washington - Patrick Casey age 24, born 1881 injured 24/01/1924
Seaton Delaval - William Casey age 40, born 1863 injured 02/11/1903
Only the first one died from his injuries
All information from Tyne and Wear Archives
Christine