Welcome Ayjay. Your pseudonymn is synonymous with the initial letters of my first two forenames: A=Arthur, J=James ... and the third, 'B', is for Bafour. I was called after my father, who happened to be the 3rd youngest child in a family of eleven. HE was named after an early C.20 Prime Minister, A.J. Balfour [no relation] who'd been held in high esteem by my paternal grandparents.
Co-incidentally, as it turned out, I developed a keen interest in "family history" at an early age.