Hi
Yes there must have been two Iknow he had a son John Jnr. My Gt Grandmothers death Cert and my grandmothers death certs are all signed by Dr John Houston, he signed my medical certs to come to NZ in 1967 and Dr Throne signed Mum and Dads. I remember the surgery well you went in the front door and there was a big room with chairs and you took a seat and as each one went in you moved up a chair, Dr Houston had the room which was at the side of the waiting room and bigger, Doc Throne had one which you had to pass the nurses staion for sort of out the back and much smaller. The surgery hours were 8.30 to noon and 2.30 to 5 pm. In between they did house calls. As a younger person I was quite ill and one of them used to visit me always around lunch time at home. I have a card from Doc Throne when Dad died in 1993 I think Dr houston snr had retired by then or was not as active. Perhaps someone who has access to the old phone books can confirm that there were two. As I say I dont want to start a debate ;-)
Dyan