Which party was the incumbent from when the cadidates were henry e. barbour (r) 52.1% henry hawson (d) 47.9%?  Answer: Democratic
create table table_1346118_5 (party varchar, candidates varchar, PRIMARY KEY (party))
select count(party) from table_1346118_5 where candidates = "henry e. barbour (r) 52.1% henry hawson (d) 47.9%"