In the 1880 census in Brazoria county Texas (not very far from Comal county):
Henry Ludicke 53 from Hanover
wife Dorah 43 Hanover
daughter Zeddie 21 born TX
Henry 17 TX
Johanna 14 TX
Albert 11 TX
John 9 TX
Addie 5 TX
Dorah 3 TX

It is hard to say if this is the same family from the 1870 census, but some of the details match. It could be that Henry remarried, and the addition of Johanna is from his new wife.