when was the first elected when the  candidates is thomas lawyer (dr) 54.9% william beekman (f) 45.1%?
CREATE TABLE "table1_2668347_14" (
  "district" text,
  "incumbent" text,
  "party" text,
  "first_elected" text,
  "result" text,
  "candidates" text
);
SELECT "first_elected" FROM "table1_2668347_14" WHERE "candidates"='Thomas Lawyer (DR) 54.9% William Beekman (F) 45.1%';