Why don't you check your pediatric records?
Check this excellent FReeper thread for more info.
I have my mother checking records for me -- actually, I'm just curious at this point... my hubby has the scar and I don't, yet I kinda sorta remember receiving a 2nd smallpox vac in the early 70's and the nurse commenting on my previous one. I think we were re-vaccinated because we were moving overseas. (Dad was a KC-135 pilot so we moved a lot.) Also had to get a cholera shot - and that was awful! Very painful...
Thanks again!