| Fødsel |
15 maj 1891 |
Brooklyn, Kings, New York (NY), USA |
| |
| Far |
Julius de Neergaard, f. 8 mar. 1861, Handewitt (Hanved), Schleswig-Holstein, Deutschland |
| Mor |
Sara Marie Sørensen, f. 15 jul. 1868, Faaborg, Skast, Ribe, Danmark |
| Gift |
4 dec. 1889 |
| |
| Familie |
Christine de Mund Hopkins, f. 5 nov. 1898, New Jersey (NJ), USA |
| Gift |
23 nov. 1918 |
Beijing, China |
| Børn |
| + | 1. Christian Ferdinand Frederick de Neergaard, f. 11 jul. 1923, Beijing, China |
| + | 2. Robert Julius de Neergaard, f. 24 aug. 1927, Brooklyn, Kings, New York (NY), USA |
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