I found two Armbruster's in marriage records in my church's record books (Springfield,IL)
Alphonse ARMBRUSTER (widower) born in Geugenbach,Baden
married to: Lina DAUCHERT born in Duenkelsbuehl,Baiern
Witnesses: John.Fried.WILD and Ernst BUEHLER
(town name probably Gengenbach???)
Theobald HAENSEL born 11/3/1854 St.Louis,MO residing in Gardner Twp.
Sangamon Co.,IL. Parents: Theobald HAENSEL and Maria Ursula Nee AUSELM
married to: Anna MERTZ born 1/2/1861 Springfield,IL residing in Springfield,IL
Parent: Joh.Geo.MERTZ
Date: 11/23/1883 in parsonage by Rev.Lochner
Witnesses: Jacob ARMBRUSTER and Maria MERTZ