SCHEMA:
CREATE TABLE table_1341586_39 (incumbent VARCHAR, candidates VARCHAR)
USER:
who is the incumbent with candidates being tom ridge (r) 80.9% joylyn blackwell (d) 19.1%

QUERY:
SELECT incumbent FROM table_1341586_39 WHERE candidates = "Tom Ridge (R) 80.9% Joylyn Blackwell (D) 19.1%"