After his study, he went to Edinburgh for a break but was also asked to represent the Thai government in liaising with the Rockefeller Foundation, which was offering monetary and technical help to improve Thailand's medical and public health education. His first child, Princess Galyani Vadhana, was born in London in 1923. He returned to Thailand in the same year to take the position of Director-General of the University Department in the Ministry of Education. Apart from his administrative duties, he also taught pre-clinical medical students at the Royal Medical College.