Who was the incumbent when henry e. barbour ran?
{'header': ['District', 'Incumbent', 'Party', 'First elected', 'Result', 'Candidates'], 'page_title': 'United States House of Representatives elections, 1926', 'section_title': '', 'caption': '', 'rows': [['California 1', 'Clarence F. Lea', 'Democratic', '1916', 'Re-elected', 'Clarence F. Lea (D) Unopposed'], ['California 2', 'Harry L. Englebright', 'Republican', '1926', 'Re-elected', 'Harry L. Englebright (R) Unopposed'], ['California 3', 'Charles F. Curry', 'Republican', '1912', 'Re-elected', 'Charles F. Curry (R) Unopposed'], ['California 5', 'Richard J. Welch', 'Republican', '1926', 'Re-elected', 'Richard J. Welch (R) Unopposed'], ['California 6', 'Albert E. Carter', 'Republican', '1924', 'Re-elected', 'Albert E. Carter (R) Unopposed'], ['California 7', 'Henry E. Barbour', 'Republican', '1918', 'Re-elected', 'Henry E. Barbour (R) Unopposed'], ['California 10', 'John D. Fredericks', 'Republican', '1923', 'Retired Republican hold', 'Joe Crail (R) 86.8% N. Jackson Wright ( S ) 13.2%']]}