WIKI:
In 1886, he partnered with Josiah Dallas Dort to found Flint Road Cart Company eventually transforming $2,000 in start-up capital into a $2-million business with sales around the world.[4] By 1890, the Durant-Dort Carriage Company, based in Flint, had become a leading manufacturer of horse-drawn vehicles and in 1900, the largest in the US

However, Durant had overextended himself with imprudent acquisitions, and in 1910, General Motors faced a cash shortage. In the aftermath, Durant was forced out of the company by a consortium of bankers.[6] Not to be defeated, Durant backed Louis Chevrolet's eponymous company in 1911; J. Dallas Dort was vice-president and director of the company.[8] In 1913, Dort stepped down as vice-president of Chevrolet,[8] and in 1914 Durant disposed of his share of the Durant-Dort Carriage Company.[9] By 1915 R S McLaughlin was building Chevrolet to allow that 1916, Durant had leveraged Chevrolet's sales to regain control of General Motors, and he went on to lead GM until 1920.

https://en.wikipedia.org/wiki/Josiah_Dallas_Dort

You would have to do a family tree search for his off spring. I suspect your customer is related. Durant was really big in the carriage business before cars. "Lets put a motor on a carriage and call it a horseless carriage".

Like the Wright Bros were bicycle guys. Look what they did. Same era.


Right is right, even if everyone is against it, and wrong is wrong, even if everyone is for it. - William Penn