CREATE TABLE table_18169 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Results" TEXT, "Candidates" TEXT)

Who's the incumbent in the district that first elected in 1969?
SELECT "Incumbent" FROM table_18169 WHERE "First elected" = '1969'
SELECT "Incumbent" FROM "table_18169" WHERE "First elected" = '1969'