CREATE TABLE table_18511 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

Name the number of candidates for 1941
SELECT COUNT("Candidates") FROM table_18511 WHERE "First elected" = '1941'
SELECT COUNT("Candidates") FROM "table_18511" WHERE "First elected" = '1941'