Armand Hammer was a guy who owned Occidental Petroleum for many years.  His name sounds suspiciously like Arm & Hammer, the company that makes baking soda and other household products.  Wikipedia sums it up thusly
In the 1980s Hammer owned a considerable amount of stock in Church and Dwight, the company that manufactures Arm & Hammer products; he also served on its board of directors. But the Arm & Hammer company's brand name did not originate with Armand Hammer. It was in use some 31 years before Hammer was born.
Slightly mind-blowing. #business