The sudden death of Professor JohnClark, at the age of 52, has robbed Britain of a world leader in animal science and biotechnology, and an individual whose commitment to science was based on a genuine concern for others.
Clark was an exception in that he had a clear commitment to commercialising research - and the entrepreneurial flair to achieve this.
Clark was awarded the OBE in 1997, elected a fellow of the Royal Society of Edinburgh in 1999, and was a valued contributor to numerous scientific committees and working groups.
William Clark was born in 1770 to John and Ann Rogers Clark in Caroline County, Virginia, the ninth of ten children.
President Jefferson appointed Clark brigadier general of militia and superintendent of Indian affairs for the Louisiana Territory, which was beset with problems including a sudden influx of population, and contention between ambitious government officials and scheming businessmen.
William Clark recovered from his grief and defeat, marrying Harriet Kennerly Radford, a widow who was also a cousin of his first wife, and putting his energies into the administration of Indian affairs in the west.