[5] His career in rugby came to an abrupt end after he received a serious ligament injury while on a tour with the Barbarians later that year.
[1] In 1963, they opened a vegetarian restaurant, Henderson's in Hanover Street in the centre of Edinburgh, "which has long since established itself as an institution in the city.
"[1][2][7] Henderson met Janet Millar, while playing tennis at a friend's home at Gullane.
The couple went on to have seven children; five sons named Andrew, John, Peter, Nicholas and Oliver; two daughters, Sara and Catherine.
[1] On the occasion of his 100th birthday in 2007, Scottish Rugby held a lunch in honour of Henderson at Murrayfield Stadium.