GarwynYoung and Alvin(Bonzo) Head

These two were members of the 1RWF Band in the 1960's and early 70's. Garwyn was a percussionist and when he left the Army went to work for the BBC National Welsh Orchestra came from Bridgend area. His famous cousin Jeff Young former wales Hooker in the 70's.
Alvin was from Treharris. Had a Famous sisiter who threw the Shot Putt for Wales/UK. He was a Cornet and Bass player also Regimental Harpist. He went into the Thames Valley Police when he left the Army. Does anyone know where they are?

Hingey