Would employee records exist for the company that built 'The Monitor' in 1862? It was the Continental Iron Works in Greenpoint, Brooklyn. My great grandfather was a shipwright and worked on The Monitor. Illustrations show it sliding down the ways in Greenpoint, Brooklyn where he [Amos Silkworth] was an employee. I have a receipt signed by him for labor/materials billed to the Schooner "Eagle", though there is no heading on the receipt. If records are available where would they be? NY State, Brooklyn or Maritime archives? Thanks in advance--Jan