Johannes married Emma Osthoff on 4 Jul 1930 in Hinterweidenthal, Pfalz, Bayern. Emma (daughter of Friedrich Osthoff and Anna Fischer) was born on 12 Jun 1908 in Hinterweidenthal, Pfalz, Bayern; died on 22 Jul 1977 in Pirmasens, Stadtkreis Pirmasens, Rheinland-Pfalz. [Group Sheet] [Family Chart]

1. Waldemar Dietrich was born on 15 Aug 1930 in Hinterweidenthal, Landkreis Südwestpfalz, Rheinland-Pfalz; died on 6 Dec 2012 in Homburg/Saar, Saarland.
2. Rudolf Dietrich was born on 27 May 1937 in Hinterweidenthal, Pfalz, Bayern; died on 4 Feb 2022 in Bad Dürkheim, Landkreis Bad Dürkheim, Rheinland-Pfalz.