Commissioner and sanitation campaigner Edwin Chadwick testified that each year, 20,000 adults and 30,000 children were being buried in less than 218 acres of already full burial grounds; the Commission heard that one cemetery, Spa Fields in Clerkenwell, designed to hold 1,000 bodies, contained 80,000 graves, and that gravediggers throughout London were obliged to shred bodies in order to cram the remains into available grave space.