Table:
text: United States House of Representatives elections, 1966
Indiana
Indiana
District Incumbent Party First_elected Result_ Candidates
Indiana 1 Ray J. Madden Democratic 1942 Re-elected Ray J. Madden (D) 58.3% Albert Harrigan (R) 41.7%
Indiana 3 John Brademas Democratic 1958 Re-elected John Brademas (D) 55.8% Robert A. Ehlers (R) 44.2%
Indiana 4 E. Ross Adair Republican 1950 Re-elected E. Ross Adair (R) 63.5% J. Byron Hayes (D) 36.5%
Indiana 5 J. Edward Roush Democratic 1958 Re-elected J. Edward Roush (D) 51.1% Kenneth Bowman (R) 48.9%
Indiana 7 None (District created) None (District created) None (District created) New seat Republican gain John T. Myers (R) 54.3% Elden C. Tipton (D) 45.7%

Question: From the 1966 United States House of Representatives election, who is the incumbent of the district whose first election was held under Indiana in 1950?