CREATE TABLE table_72432 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Result" TEXT, "Candidates" TEXT)

what's the party with incumbent being william e. evans
SELECT "Party" FROM table_72432 WHERE "Incumbent" = 'William E. Evans'
SELECT "Party" FROM "table_72432" WHERE "Incumbent" = 'William E. Evans'