Table:
text: Oklahoma's 3rd congressional district
List of members representing the district
List of members representing the district
Name_ Took_Office Left_Office Party District_Residence Notes_
Wes Watkins January 3, 1977 January 3, 1991 Democratic Ada 
Bill Brewster January 3, 1991 January 3, 1997 Democratic  
Wes Watkins January 3, 1997 January 3, 2003 Republican Stillwater 
Frank Lucas January 3, 2003 present Republican Cheyenne Redistricted from the 6th district, Incumbent

text: Oklahoma's 3rd congressional district
List of members representing the district
List of members representing the district
Name_ Took_Office Left_Office Party District_Residence Notes_
District created District created November 16, 1907   
James S. Davenport November 16, 1907 March 4, 1909 Democratic  
Charles E. Creager March 4, 1909 March 4, 1911 Republican  
James S. Davenport March 4, 1911 March 4, 1915 Democratic  Redistricted to the 1st district
Charles D. Carter March 4, 1915 March 4, 1927 Democratic  Redistricted from the 4th district
Wilburn Cartwright March 4, 1927 January 3, 1943 Democratic  
Paul Stewart January 3, 1943 January 3, 1947 Democratic  
Carl Albert January 3, 1947 January 3, 1977 Democratic McAlester Speaker of the U.S. House of Representatives from 1971-1977

Question: What is the total number of representatives of the Democratic Party in Oklahoma's 3rd congressional district?