Familie: Robert Joseph MERTENS / Cecelia BERNECKER (F1776)
verh. 6 Sep 1919Gustav Adolf BERNECKER (1872-1940) 
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Mathilde Pauline PULVERMÜLLER (1872-1955)
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| Otto Oskar BERNECKER (1891- ) |
| August Ferdinand BERNECKER (1897-1916) |
Reinhold BERNECKER (1903-1963)  |
| Alfred BERNECKER (1907- ) |
| Robert Joseph MERTENS (1893-1964) |
| Cecelia BERNECKER (1898-1983)
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| Erich Gustav Adolf Eric MERTENS (1920-1991) |
| Cecelia MERTENS (1922-1995) |