Valereie Dobson. I was at Mbeya the same years that you were and have contacted many people through this sight, including Alec Wight, Rosemary Anders, Rodney Clarke, plus many other friends from Kenya & Tanganyika. Alec has been great posting all those photos & I really enjoy looking at them.
I now live in Melbourne Australia and have been here since 1965. We went over to visit Kenya and Tanzania in 2010. Much changed it is, but it was a very spiritual journey for me.
Love to hear from you sometime.