Family: Jacob Sper / Maria Katharina Hammer (F198)
Johannes Jakob Hammer (1717-1751) 
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Anna Barbara Petermann (1725-1762)
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| Johannes Balthasar Hammer (1741-1742) |
| Johannes Adam Hammer (1744-1750) |
Anna Maria Hammer (1746-1783)  |
| Johannes Jakob Hammer (1749-1750) |
| Maria Anna Hammer (1752-1790) |
| Maria Katharina Hammer (1742- )
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| Jacob Sper (1740- ) |
| Anna Maria Sper (1764-1764) |