Van Heemstra was married and divorced twice, and had three children. Aged 19, Van Heemstra married
Jonkheer Hendrik Gustaaf Adolf
Quarles van Ufford. They divorced in 1925. Van Heemstra had two sons from this marriage, both of whom were born in the
Dutch East Indies: •
Jonkheer Arnoud Robert Alexander Quarles van Ufford (1920–1979), married to Maria Margaretha Monné (1919–2006), with issue: • Michael Allan Quarles van Ufford (born 17 July 1945) • Evelyn Joyce Quarles van Ufford (born 2 August 1947) •
Jonkheer Ian Edgar Bruce Quarles van Ufford (1924–2010), married to Yvonne Scholtens (1928–2000), with issue: • Audrey Yvonne Quarles van Ufford (born 10 May 1954) • Sandra Claire Quarles van Ufford (born 15 October 1958) • Andrew Ian Quarles van Ufford (born 6 January 1967) Van Heemstra married secondly Joseph Victor Anthony Ruston (later Hepburn-Ruston) on 24 September 1926 at Batavia, Java,
Dutch East Indies. They were divorced on 24 June 1939 and had one daughter: • Audrey Kathleen Ruston (4 May 1929 – 20 January 1993), commonly known as
Audrey Hepburn Van Heemstra was an early supporter of Adolf Hitler and his Nazi regime, penning several articles in praise of the fascist leader.
Micky Burn was her lover; they corresponded while he was a prisoner at
Colditz Castle,
Oflag IV-C, after both left fascism, and after his release. ==Later life==