My G/G/Grandfather ventured out to the California Gold Rush in 1850 at the tender young age of 17.
He left his family's farm on Long Island in search of making his fortune in California's Gold Country.
He had an uncle (Jones) in NYC who was a store owner and they made a deal...his uncle would grubstake him with a consignment of goods and young Henry Hewlett would get them to California via ship and sell them, reaping the highest prices he'd be able to get and the two of them would split the net proceeds 50/50.
Young Henry had a good business head on his shoulders and was able to liquidate his entire consignment at a handsome profit. Good enough that he ordered another batch of goods to be sent to him from back east ASAP.
Soon, he was able to drop back down from the Gold fields where he'd sold his last items, a large supply of boots, that sold very handsomely.
He ended up settling in the camp that was to later become the small town of Stockton, one of the "Gateways to the Mother Lode".
In Stockton he built this store, which prospered, and soon he was selling almost everything imaginable from boat rigging to guns to farm machinery, all sorts of hardware, you name it, he had it!
In fact his store grew so much in popularity that he was able to have various items put up in his store's name.
Here is a flyer for his own "house" brand of Blackpowder, put up for him by the Mass. Powder Co.
The store was just a start, soon he was involved in various other businesses as well; he definitely had the "Midas Touch".
BTW, this information was sent to me a few years ago by the Historian for Wells Fargo.
If anyone out there would like a copy of this Blackpowder flyer, I've had a small number printed up on period colored heavy paper stock, suitable for framing or display. PM me and maybe I can get one to you.