CREATE TABLE table_18696 ("District" TEXT, "Incumbent" TEXT, "Party" TEXT, "First elected" FLOAT, "Result" TEXT, "Candidates" TEXT)

How many districts does john j. douglass represent?
SELECT COUNT("District") FROM table_18696 WHERE "Incumbent" = 'John J. Douglass'
SELECT COUNT("District") FROM "table_18696" WHERE "Incumbent" = 'John J. Douglass'