John H. Zwicker was born in 1833. Active as a shipwright, he opened his own shipyard in Mahone Bay in 1862. In the decades that followed, he emerged as one of the town’s leading shipbuilders, turning out 162 vessels, mostly schooners, but also including several brigantines and barquentines, as well as the full-rigged ship Kinburn. Zwicker died in 1913. Four years later, the John H. Zwicker yard was sold to John McLean & Sons.