CREATE TABLE table_18424 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

Who were all the candidates when the first elected year was 1961?
SELECT "Candidates" FROM table_18424 WHERE "First elected" = '1961'
SELECT "Candidates" FROM "table_18424" WHERE "First elected" = '1961'