CREATE TABLE table_12841 ("Election" TEXT, "1st Member" TEXT, "1st Party" TEXT, "2nd Member" TEXT, "2nd Party" TEXT)

Which 1st Party has an Election of 1893 by-election?
SELECT "1st Party" FROM table_12841 WHERE "Election" = '1893 by-election'
SELECT "1st Party" FROM "table_12841" WHERE "Election" = '1893 by-election'