The Buick Motor Company was founded in 1903 by David Dunbar Buick, a Scottish-American inventor who invented the overhead valve engine.
Buick and his friend took over a plumbing business - but within a few years, Buick had an argument with his partner because he preferred to spend his time tinkering with car engines. Buick sold his share in the company and quit, using the money to start the Buick Motor Company. Within a few years ran it to the ground. He was kicked out of the company by his partner William "Billy" Durant in 1906 and later sold his stock for a mere $100,000. Had he held on to his shares, it would’ve been worth well over $100 million today.
In his later years, Buick held low-paying jobs and couldn’t even afford a telephone. He died penniless as an inspector at the Detroit School of Trades. Ironically, years later Durant himself would be forced out. General Motors, the company that Durant built, refused him pension and he died almost penniless.