--Both families sharw a common ancestor from the 17th century named Samuel Hinckley. -- Hinckley's brother was scheduled to have dinner at the home of the Neil Bush (son of George H.W. and brother of George W.) the day after the assassination attempt. --John Hinckley Sr. and George Bush Sr. were neighbors in Houston. -- When the Hinckley oil company, Vanderbilt Oil, started to fail in the 1960s, Bush Sr.'s Zapata Oil financially bailed out Hinckley's sompany. Hinckley had been running an operation with six dead wells, but he began making several milliion dollars a year after the Bush bailout.