I knew David from when he married my husband Roger's cousin Tegfron (Tegi) Cann in the early 1960's.
He was a Rock, always courteous, kind and considerate and interested in what you had to say. I marvel at how organised he was and good at ideas for sorting out his and others' problems.
But mostly I will remember his courage in dealing with the many difficult times in his life. He will be greatly missed.