15 Jul 1879 - Geburt of sein natural Vater William at Nenderoth, Lahn-Dill-Kreis, Hesse, Germany 

23 Apr 1893 - Geburt of seine natural Mutter Elsa at Chicago, Cook, Illinois, USA 

1 Jun 1914 - Eheschließung of eltern at Chicago, Cook, Illinois, USA 

13 Sep 1916 - Geburt at Chicago, Cook, Illinois, USA 

29 Jan 1921 - (4 Jahre) Geburt of seine Ehefrau Marguerite at Minneapolis, Hennepin, Minnesota, USA 

13 Sep 1936 - (20 Jahre) _MILT:

16 Okt 1940 - (24 Jahre) Registration: Age: 24 at River Forest, Cook, Illinois, USA 

22 Jun 1954 - (37 Jahre) Eheschließung with Marguerite at Cook, Illinois, USA 

17 Apr 1958 - (41 Jahre) Beerdigung of seine natural Mutter Elsa at Hillside, Cook, Illinois, USA 

Apr 1958 - (41 Jahre) Tod of seine natural Mutter Elsa at River Forest, Cook, Illinois, USA 

9 Feb 1964 - (47 Jahre) Comment 1: The Beatles made their debut on The Ed Sullivan Show, with the Ludwiglogo displayed on the front of Ringo's Bass Drum

11 Jul 1973 - (56 Jahre) Beerdigung of sein natural Vater William at River Forest, Cook, Illinois, USA 

Jul 1973 - (56 Jahre) Tod of sein natural Vater William at River Forest, Cook, Illinois, USA 

9 Jul 2002 - (85 Jahre) Comment 1:

1 Nov 2002 - (86 Jahre) Tod of seine Ehefrau Marguerite at Hinsdale, DuPage, Illinois, USA 

22 Mrz 2008 - (91 Jahre) Tod at Chicago, Cook, Illinois, USA 

19 Apr 2008 - Comment 2: Trauerfeier - Grace Lutheran Church at River Forest, Cook, Illinois, USA