At that time , having already served in the House of Representatives , she also became the first woman to serve in both houses of Congress .
On September 13 , 1948 , Margaret Chase Smith became the first Republican woman elected to the U.S. Senate .
At that time , having already served in the House of Representatives , Margaret Chase Smith also became the first woman to serve in both houses of Congress .
On September 13 , 1948 , Margaret Chase Smith became the first Republican woman elected to the U.S. Senate .