I am looking for information regarding brothers Fritz and Louis Ehlers who immigrated to Texas from Celle Hannover Germany around 1850. Both were cigar-makers. We believe they arrived with their mother Dorethen (Dora) and that their father was trampled to death on the ship-ride to the US. Any information about the father's name and/or mother Dora, either before arriving in the US or after, would be appreciated. Dora remarried after her arrival in the US, possibly to a Nitschke and/or Jordel.