

| Gerardo Serafino Casto Meltzer Zaracondegui | |
| F: | 12 Okt 1880 |
| Bilbao, Spain | |
![]() | Juan Nicasio Leon Meltzer Zaracondegui |
| Juan Nicasio Leon Meltzer Zaracondegui | |
| F: | 14 Des 1881 |
| Bilbao, Spain | |
| D: | 22 Nov 1950 |
| Vizcaya, Spain | |
![]() | Mercedes Margaretha Meltzer Zaracondegui |
| Mercedes Margaretha Meltzer Zaracondegui | |
| F: | 12 Jun 1884 |
| Bilbao, Spain | |
| D: | 1 Nov 1884 |
| Bilbao, Spain | |
| Lorenzo Leon Ricardo Meltzer Zaracondegui | |
| F: | 11 Apr 1887 |
| Bilbao, Spain | |
| D: | 6 Apr 1958 |
| Madrid, Spain | |
![]() | Frederico Severo Jose Meltzer Meltzer |
| Frederico Severo Jose Meltzer Meltzer | |
| F: | 6 Nov 1889 |
| Bilbao, Spain | |
| D: | 18 Jan 1942 |
| Madrid, Spain | |
| Enriqueta Guadalupe Concepción Meltzer Zaracondegui | |
| F: | 5 Mar 1892 |
| Bilbao, Spain | |
| D: | 1 Mar 1894 |
| Bilbao, Spain | |
![]() | Telesfora Zaracondegui y Antotegui |
| Telesfora Zaracondegui y Antotegui | |
| F: | 7 Jan 1855 |
| Vizcaya, Spain | |
| D: | 31 Okt 1939 |
| Bilbao, Spain | |
![]() | Johan Nordahl Lauritzen Meltzer |
| Johan Nordahl Lauritzen Meltzer | |
| F: | 24 Mai 1855 |
| Bergen, Hordaland, Norway | |
| G: | 29 Sep 1879 |
| Church of Sant Vicenç, Cardona, Catalonia, Spain | |
| D: | 10 Okt 1930 |
| Bilbao, Biscay, Spain | |