Family: Laurence McCoole / Helen Katherine Hecker (F17947)
Timothy Mathias Hecker (1891-1967) 
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Katherine Emma Obritschkewitsch (1893-1980)
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| Robert Timothy Hecker (1919-1976) |
| Kenneth Lawrence Hecker (1931-1979) |
| Timothy Mathias Hecker (1891-1967)
|
| Katherine Emma Obritschkewitsch (1893-1980)
|
| Robert Timothy Hecker (1919-1976) |
| Kenneth Lawrence Hecker (1931-1979) |