| Title | Family member |
| Is Current | no |
| Notes | Henderson Brothers — purchased in 2000 by LaBranche & Co. and now part of New York-based Cowen Group Inc. — supplied one of Wall Street’s deepest family traditions. The company was founded in 1861 by Henderson’s great-grandfather, William T. Henderson, making Charles the fourth generation to run it. He was chairman of the firm from the mid-1960s, when he succeeded his father, John, to his retirement in the mid-1980s. |