List all the years with Cecil M. Featherly in the 1st district and David L. Baker in the 2nd district?
CREATE TABLE "supervisors" (
  "year" real,
  "1st_district" text,
  "2nd_district" text,
  "3rd_district" text,
  "4th_district" text,
  "5th_district" text
);
SELECT "year" FROM "supervisors" WHERE "2nd_district"='David L. Baker' AND "1st_district"='Cecil M. Featherly';