CREATE TABLE table_74022 ("District" CLOB, "Incumbent" CLOB, "Party" CLOB, "First elected" FLOAT, "Result" CLOB, "Candidates" CLOB)

Who was the candidate in 1791?
SELECT "Candidates" FROM table_74022 WHERE "First elected" = '1791'
SELECT "Candidates" FROM "table_74022" WHERE "First elected" = '1791'