Waterford was one of the 31 boroughs which were selected to retain parliamentary representation .
A ballot was held to choose which of each borough 's MPs should be co-opted as the initial holder of the single seat which would be allocated to them in the new parliament .
Waterford was one of the 31 boroughs which were selected to retain parliamentary representation , and a ballot was held to choose which of each borough 's MPs should be co-opted as the initial holder of the single seat which would be allocated to them in the new parliament .