Augustine Herman made a trip to Philadelphia, he also made voyages to the Dutch Antilles and all these claims are confirmed.
It has been asserted that he made a trip to North America in 1633, when he allegedly signed his name witnessing the Dutch purchase of lands from the Lenape Native Americans near the later site of Philadelphia. Some also claim that he made voyages to the Dutch Antilles and Surinam and that he claimed to be "the first founder of the Virginia tobacco-trade," which began in 1612. All these claims are undocumented and highly questionable. 
