AbstractCornells Adrianus Pekelharing Cornelis Adrianus Pekelharing Ã¢â¬â Biographical A (July 19, 1848-September Cornelis Adrianus Pekelharing was a true son of his time and nation. He was born as the sixth child of Cornelis Pekel haring, M.D. and Johanna van Ree in the small industrial town of Zaandam in western Holland. His childhood was a happy one. His father, son of a country doctor, was a busy physician and a scholar, devoted to his patients. Unlike many of his colleagues, he kept abreast of new medical develop ments through scientific journals and close contact with the medical school at the nearby University of Amsterdam. Cornelis' mother also came from a doctor's family. They were married in 1840. Her life cen tered around her family of seven children and a husband. They worked hard and lived simply to enable all six sons to ob tain a university education. Vacation was unknown to them. The children were brought up in the stern tradition of duty, integrity, industry and frugality. These characteristics remained Pekelharing's most outstanding ones all through his life. The parents were Baptists but they let their children make their own decisions as to the denomination they wanted to select.