[2] Rapee Sagarik was born on 4 December 1922 in Worachak Sub-district, Pom Prap Sattru Phai District, Bangkok.
However, due to his passion for fieldwork, he chose to work at an agricultural experiment station in Mae Jo as a temporary employee assigned to conduct research on rice, vegetable and tobacco varieties.
During the 2006 political crisis, he jointly signed a royal petition asking for the king's intervention in naming a prime minister, and was a consultant to the People's Alliance for Democracy.
[6] Rapee Sagarik was married to Kalaya Montriwat (daughter of Phichai Montri, Chief of the Free Thai Movement in Kanchanaburi during World War II).
After 1990, he resigned from the various public and private positions he held, to turn to a peaceful and simple life, though he continued to accept invitations for lectures, especially in rural and youth development, focusing on morality and ethics.