The pair were married in 1962, after he qualified in medicine, and started their adventures together by travelling to South Africa and then up to Salisbury in Southern Rhodesia (now Harare in Zimbabwe), where Black spent a year as a house doctor.
After Black's year in Rhodesia he and Jean took off three months and drove in a DKW jeep up through Africa, across to Tunis, Europe and back home to Sussex.
On his return to England, Black worked as a senior house officer and registrar while studying for membership of the Royal College of Physicians at Croydon General and Harefield Hospitals.
[citation needed] During Black's time in Carolina, he and Jean met Phil Harvey, an American also studying Population Dynamics, and they put together plans to sell condoms through the post.
Harvey stayed at the 'head office' in Chapel Hill, while Tim and his family left for Africa to set up the organisation's first US-funded Contraceptive Social Marketing (CSM) Programme in Kenya.