Here is the marriage record of Jacob Ecker, who I believe was the first Ecker born in Unterreichenbach. The marriage was on the 3d of 7bris (Sept) in 1748. The groom was Jacob Ecker, (son of) Hans Georg Ecker*; mahlemullers son here; with Maria Catharina Kohler(in) von Malentheim? and other untranslated description.

By the way, note the underlined name in the first proclamation of marrige of 1748, "Michael Ecker,"also son of Hans Georg Eckers.  A look at the Ecker Family Register Index and his parents Family Register shows that Micheal, born in 1722, was a brother to the present Jacob.  I have a church registry entry started for this proclamation, but I suspect the marriage took place elsewhere. It confirms a family relationship in Pforzheim. Buried treasures everywhere!