These records establish family relationships, link families together and greatly supplement the research process. The earliest known counts were “hearth and head counts” carried out by the Knights of St. John in the early 1500s. Specific dates of enumeration are not available until the counts of 1828 and 1837, followed by a census in 1842 and 1851. Thereafter a census was taken every 10 years. | These records establish family relationships, link families together and greatly supplement the research process. The earliest known counts were “hearth and head counts” carried out by the Knights of St. John in the early 1500s. Specific dates of enumeration are not available until the counts of 1828 and 1837, followed by a census in 1842 and 1851. Thereafter a census was taken every 10 years. |