 how many party with candidates being john m. vorys (r) 61.5% jacob f. myers (d) 38.5%
CREATE TABLE "table1_1342013_34" (
  "district" text,
  "incumbent" text,
  "party" text,
  "first_elected" real,
  "result" text,
  "candidates" text
);
SELECT COUNT("party") FROM "table1_1342013_34" WHERE "candidates"='John M. Vorys (R) 61.5% Jacob F. Myers (D) 38.5%';