Hi. If your dads army number is correct then he would have joined up in 1972, about September time as the 2429 at the start of his number was issued then, (hope that makes sense). 1 RGJ was at Tidworth at this time before moving to Osnabruck in Germany. I can not say that I remember your dad but if I can help in any way please let me know
I have very little detail as we have been estranged since I was 5 yrs old! We think he suffered from post traumatic stress he was at regents park when the bandstand was blown up and was part of the clean up operation in the Falklands