Gustave, I have seen material on the Orleans parish records of a Gustave Lehmann, but have not been able to establish any connection with my Hermann Edward Lehmann who was found in New Orleans by 1833 as a musician at the Orleans Theatre.
I have wondered if he came to America with other family. He was from Berlin, Prussia.I think he must have come through New York, and may have come with his parents to America. Do you have any suggestions as to where to search for his immigration..perhaps some repository in New Orleans?
Lately I've enjoyed checking the NOLA Times Picayune Historical Archives for news articles and have found quite a few on my Lehmann family....even articles about an aunt who traveled to New York to visit cousins. In case you have not found that, the site is: www.nola.com/t-p and then click on Historical Archives. Helen Lehmann Smith