TALLAHASSEE - Name recognition may be the deciding factor in two races for Florida's three vacant congressional districts. The offspring of well-known politicians will be on the September fifth primary ballot. State Representative Gus Bilirakis is trying to keep his father's Ninth District seat in the family. U-S Representative Mike Bilirakis is retiring after 24 years in Congress. Both are Palm Harbor Republicans. Hillsborough County Commissioner Kathy Castor is the daughter of former Florida Education Commissioner and 2004 U-S Senate candidate Betty Castor. Kathy Castor is a Democratic candidate for the 11th District seat being vacated by Representative Jim Davis, who is running for governor. The younger Bilirakis and Castor, both lawyers, are favored to win their respective party primaries.