Leonard was born on 18 MAR 1861 in Puttlingen, Germany, the son of Mathias Blaes and Barbara Mathis.
He died on 2 SEP 1936 in Puttlingen, Germany.
His wife was Margarethe Dumont, who he married on 16 NOV 1886 in Puttlingen, Germany. They had no known children.
| Event | Date | Details | Source | Multimedia | Notes | ||
|---|---|---|---|---|---|---|---|
| Birth | 18 MAR 1861 |
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| Death | 2 SEP 1936 |
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