Martha Dunford married Guy Secord. Their fourth child, Rose Henrietta Mary Secord, married her step-father William John Kemble following Martha's death. William and Rose's eldest daughter, Rose Martha Kemble was married twice.Her second husband was Herbert Donald Jarvis. Herbert and Rose (aka Aunty Daisy) had 9 children including four boys according to a niece of Rose's who I recently spoke with in Christchurch.
William and Elizabeth Dunford had 13 - perhaps 14 - children.All except 2 survived to maturity.
I am descended from Martha's illegitimate daughter Frances Secord.