Table schema:
CREATE TABLE table_2668243_18 (party VARCHAR, candidates VARCHAR)

Question: Name the total number of party for willis alston (j) 93.9% george e. spruill 6.1%
SQL: SELECT COUNT(party) FROM table_2668243_18 WHERE candidates = "Willis Alston (J) 93.9% George E. Spruill 6.1%"