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Familie: Harald Valdemar Herdahl / Olga Hansine Jensen (F52888)
g. 1896Frederik Siegfrid Herdahl (1840-1876) 
|
Christine Mathilde Harpsøe (1840-1923) |
Frederik Marius Martin Herdahl (1864- )  |
| Agnes Emilie Nielsine Herdahl (1865-1951) |
| Clara Marie Herdahl (1867-1944) |
| Olga Vilhelmine Herdahl (1869-1941) |
| Frederik Sigfred Herdahl (1874- ) |
| Harald Valdemar Herdahl (1872-1942)
|
| Olga Hansine Jensen (1873- ) |
| Agnes Vilhelmine Herdahl (1900-1982) |
| Lillian Siegfride Herdahl (1904-2000) |