CREATE TABLE table_72389 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Result" TEXT, "Candidates" TEXT)

What is the earliest first elected for district georgia 1?
SELECT MIN("First elected") FROM table_72389 WHERE "District" = 'Georgia 1'
SELECT MIN("First elected") FROM "table_72389" WHERE "District" = 'Georgia 1'