The Ladd-Gilman House, also known as Cincinnati Memorial Hall, is a historic house at 1 Governors Lane in Exeter, New Hampshire, United States. The home was built about 1721 by Nathaniel Ladd as one of the state's first brick houses, and was subsequently clapboarded three decades later. The home was purchased in 1747 by Daniel Gilman, a prominent Exeter merchant. It served as the state treasury during the American Revolutionary War when two members of the Gilman family, Col. Nicholas Gilman and his son John Taylor Gilman, later the state's governor, served as treasurers of the state. Also born in the house was Nicholas Gilman, Jr., a signer of the United States Constitution and U.S. senator from New Hampshire.