First Generation
1 Monika Sobisiak. Living

Second Generation
2 Walter Heinrich Sobisiak. Living
3 Hannelore Bischoff. Living

Third Generation
4 Adalbert Sobisiak. b. 9 Apr 1890 in Klodzisko (Polen) Kreis Samter. d May 1969 in Bremen.
5 Bronislawa Nowaczyk. b 6 Aug 1897 in Alt Trachaly, (Polen) Kreis Adelnau. d. Apr 1968 in Bremen.
6 Carl Bischoff. b 21 Feb 1899 in Bremen. d 7 Nov 1964 in Bremen.
7 Meta Gesine Ehrhardt. b 10 Sep 1900 in Bremen. d. 3 Mar 1988 in Bremen. 

 Fourth Generation
8 Martin Sobiesiak. b 23 Oct 1856 in Wierzchocin (Polen).
9 Anna Kaczmarek. b 20 Jul 1857 in Ryzyin (Polen).
10 Martin (Marcin) Nowaczyk. b 7 Mar 1864 in Klein Topola (Polen). d 1 May 1942 in Radenau. 
11 Catharina Brodala. b 1 Mar 1859 in Gorzyczki, Kreis Adelnau (Polen). d in Bremen.  
12 Hermann Bischoff. b 17 Feb 1866 in Bremen. d 24 May 1908 in Bremen. 
13 Maria Bernhardine Pepersack. b 26 Oct 1865 in Wahlde (Holdorf). d 25 Mar 1958 in Bremen. 
14 Eilert HinrichWilhelm Ehrhardt. b 28 Feb 1870 in Elsfleth. 
15 Christine Dorothea Aumund. b 11 Aug 1868 in Bremen-Oberneuland. d 27 Dec 1927 in Bremen.

Places of Research:
Germany: Bremen, (Oberneuland, Rockwinkel, Arbergen, Osterholz, Seehausen) Elsfleth, Hattorf, Damme,
Poland: Poznan (Adelnau, Gorzyeski)
USA: Iowa, South Dakota, Minnesota, California