Heald married Flavia Forbes, the younger daughter of Lt. Col. James Stewart Forbes and Lady Angela Forbes, on 9 April 1923, and was divorced from her in June 1928, on the grounds of her adultery with Captain James Roy Notter Garton.
On 15 May 1929 he married Daphne Constance Price, daughter of Montagu W. Price, Chairman of the London Stock Exchange and through her mother, a niece of Edith Villiers, Countess of Lytton. They lived at Chilworth Manor, Surrey. Lady Heald trained at the Queen's Nursing Institute prior to her marriage and from 1950 became vice-president of the Royal College of Nursing. She was chairman of the National Gardens Scheme from 1951 to 1979, and opened the gardens at Chilworth for fundraising events for Marie Curie Cancer Care and other medical charities. She was appointed CBE in 1976. Lady Heald died on 14 August 2004, aged 99.[3]