The emigration book of Lingen county shows one Uchtmann:
Uchtmann Johann Heinrich, *1.Febr.1821 Lingen, Buchbinder, +1863 in New Orleans, oo6.Febr.1849 in Lingen to Christa Magdalena Fischer from Gildehaus, emigtated 1848, Parents: Bäcker Theodor Uchtmann and Clara Gesina Böhmer