Did Julius Billeter make a mistake? Apparently so. The document from the Zurich Archives seen below appears to be correct. It is a household record by the parish pastor and lists the family of Jakob Sidler. Jakob born 21 April 1783 in Ottenbach and his parents are listed and Page 72 is a full listing of his parents family and siblings. As seen in the Zürich Archives document I think Jakob married Elisabeth Gut and had no children. I have included all documents below so the reader can decide for himself who Jakob Sidler was married to. Billiter indexed more than 2 million names and rarely made mistakes even though the work load was enormous. We have nothing but great admiration for what Julius Billeter accomplished.
Documents related to Jakob Sidler:
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| Jacob Sidler birth 21 April 1783 film 8126955 page 1055 |
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| Jacob Sidler birth 21 April 1783 film 8126955 page 1055 |
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| Elisabetha Gut birth 25 Dec 1788 film 8126955 page 1044 |
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| Sidler and Hegetschweiler Temple Record by Julius Billeter, page 49 - 50 |
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| Jakob Sidler Household Parish Record, Zürich Archives, E lll 88.19 p 515 |
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| Jakob Sidler Household Parish Record, Zürich Archives, E lll 88.19 p 515 |
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| Rudolf Sidler E_III_88.19_S_72 |
The following document appears to be a mistake:
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| Sidler Hegetschweiler Temple Record by Julius Billeter page 70 |