The Dungen's of Texas

I am researching the DUNGEN family from Texas. Francis Frank Dungen first appears in the 1850 Texas census, but I don't know anything else about this family from Darmstadt Gross Grene, Germany. He married Anna Marie Hoelscher in 1843 and they had seven (7) children.

In addition, I'm researching the Christ KORTH family from Caldwell, Texas. He was born in Galanz, Posen, Germany around 1855 and came to the U.S. as a teen. He married Martha JAHNS in 1886 and they had nine (9) children.

Any information would be appreciated. I am also willing to share the information that I have.