When Nathanael Green Herreshoff was around 16, he began to work for his elder brother, John Brown Herreshoff, in his boat yard in Bristol, RI. To work as an apprentice was a traditional way to learn the skills and techniques to become a successful yacht or ship designer and builder. Nathanael Herreshoff took a different course, however. At 19 her went to the Massachusetts Institute of technology and earned a degree in mechanical engineering. After graduation, he took a position with the Corliss Steam Engine Company in Providence, Rhode Island and worked for the firm for eight years. At the age of 30 in 1878, Nathanael returned to Bristol and became a partner with his elder brother in the Herreshoff Manufacturing Company.
The unusual aspect of the partnership was that while his older brother, John Brown, known in the family as J.B., was highly successful boatbuilder, he was also blind. His blindness had not prevented him from being a skilled manager and a gifted businessman. The addition of the Nathanael as a partner added a skilled designer and engineer to the firm.