I found a Joseph Greiner married to Maria Pfeiffer. Details are:
Josepho Greiner married to Mariae Pfeiffer. They had a daughter Maria Magdalena Greiner, born 6 Jul 1791, christening shows same date. Place: Katholisch, Outscheid, Rheinland, Prussia. Record from Deutchland Gerburten und Taufen, 1558-1898. Ref ID 2:1PWJBB8, System origin Germany-VR. GS film no 466721. Indexing project (batch) no C97879-1. Citing this record: "Deutchland Gerburten und taufen 1558-1898," database, FamilySearch (
https://familysearch.org/ark:/61903/1:1:VH97-2JR : 11 Feb 2018), Josepho Greiner in entry for maria Magdalena Greiner, 6 Jul 1791; citing ; FHL microfilm 466,721
The other children are shown as Daniel 1784-1836, Peter 1788-1841, Magdalenae 1788, Susana