Germany project page|Germany Regions Team Page|North_Rhine-Westphalia_Team Page
Albert Weber (1872-1951) & wife Catharina (Günther) Weber (1875-1960) owned the Gasthaus "Deutsches Haus" in Landstuhl.
Landstuhl historically was in the state of Bayern (Bavaria) until around 1948 when it became part of the state of Rheinland-Pfalz.
I am still further researching to determine the origins of this inn, whether it was passed down to Albert & Catharina from her Günther parents/grandparents.
Sadly, the Deutsches Haus was demolished in 1976 when the street was widened.
Source
email from Christian Ott to Russ Gunther, 27 May 2017