Hello, Valerie- I do not have an eMail address for you, use of the links in the forum do not connect for me. My source that provided information was "The First Golden Age of Rocketry", 1990 Smithsonian Institution, Page 152. This weighty little tome was authored by Frank A. Winter. Interlibrary Loan can provide this text for you if your local library doesn't have it on the shelf. I am at the start of research regarding the Civil War period. You mention questions of the start and reason for the brothers abandoning the buisness, do you have any family records pertaining to same? New Jersey appears to be a mess regarding the early records, a change from county to state level administration has put much in limbo.