In that part of Virginia, creeks are often referred to as swamps. In other words, these "swamps" go on for miles! These "swamps" are often the headwaters for rivers, as in the Blackwater Swamp for the Blackwater River. Although I cannot find it on my VA Topo map, I do know of a "Rohoic" Elementary school in NE Dinwiddie County, VA. Jim
Sorry to report that I failed to find a definitive answer to the location of the Rohowick Swamp. Only a general assumption that it lay south of the Appomattox River. Marilyn