During her work for St John, Catherine Brazendale has visited Jerusalem, delivered a baby and saved many lives.
In recognition of her service, she is to be invested as a Member of the Order of St John alongside fellow Wairarapa woman Catherine Trass.
It is an extremely rewarding career, says Miss Brazendale, the area secretary for Carterton St John.
"It's a great honour to be recognised for all your service you put into the organisation."
Miss Brazendale has been involved in St John since she was 11, starting out with the Greytown St John volunteers.