I have done extensive research on the USS Constitution and where the anchors to the frigate were cast. It is generally accepted that they were made in Hanover Mass. and conjecture and legend point to the Curtis Forge on Elm Street at the Pembroke/Hanover line. There is a prominent plaque on the bridge commemorating this. My research indicates that Nathaniel Cushing, because of his connection to the Barstow Forge on State Street at the Hanover/Hanson town line, was most probably contracted to make the anchors for the Constitution. There is one historical document alluding to this event, re: the Christmas eve document requesting anchors for the frigate in Boston. The Constitution was the only frigate being constructed in Boston during this time frame. Complicating this research was the fact that there was a fire in the War Dept. which destroyed all records and contracts concerning the Constitution. I presented a program to the Hanover Historical Society in 2013 with my findings and hopefully someday Nathaniel Cushing and the Barstows Forge location will receive recognition for producing the anchors for the USS Constitution.