My Great, Great, Grandfather, Ferdinand Grott, was born in Danzig, Prussia in 1823/4. His parents were Frederick Grott and Carolina Ross. I know this information from the Scottish records, as Ferdinand was married and lived in Scotland from 1857. Both Ferdinand and his father, Frederick, were listed as Ship Masters - I have Certificates of Competency for Ferdinand.
I would love to find Ferdinand's birth certificate, as well as his parents marriage details. I would also be interested in finding out if there were any other children, brothers and sisters of Ferdinand.
I paid a professional researcher (I got his name from this site), who seemed genuine, but gave me only one useless piece of information I could have got myself from Ancestry and then I heard no more from him.
Any help would be very much appreciated.