In 1840, John Joseph Halstead sailed to Hawaii on a whaling ship, taking with him from New York carpentry and cabinet-making skills. He set up shop in Lahaina, Hawaii and made many pieces of furniture using a native wood called Koa. Few of these objects survive today due to devastating attacks by termites. A conservation project was carried out to restore and conserve as many of these objects as possible. Experiments are described to find suitable materials and techniques for filling the termite cavities and damaged furniture with modern adhesive-wood powder compositions.