I have quite a bit of information on the Hoffs of Texas. My grandmother was Lillian Hoff, daughter of Julius Hoff. Julius was a brother of your Charles Hoff. I'll get back to you with more information. But, yes, their father was Charles Karl Hoff of Driesen, Prussia, born in 1817. His wife was Ernestine Korth of New Carbe, Brandenburg, Germany. They settled in Yorktown, TX in the 1850s.