Southern significance
While the GOP performed badly nationally, Barry Goldwater's tremendous success in the Deep South led to the election of several Republicans to the House from those states, many of them the first Republicans elected there since Reconstruction. The "Goldwater Republicans" elected were:
Arthur Glenn Andrews (AL-4)
John Hall Buchanan, Jr. (AL-6)
Bo Callaway (GA-3)
William Louis Dickinson (AL-2)
Jack Edwards (AL-1)
James D. Martin (AL-7)
Prentiss Walker (MS-4)
Albert Watson (SC-2)
http://en.wikipedia.org/wiki/United_States_House_of_Representatives_elections,_1964#Southern_significance