Décès
| Date | 1965-10-11 |
| Lieu | Sigourney, Keokuk County, Iowa (IA), United States of America |
Références des sources
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Community History Archive, What Cheer, Iowa
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- Date : 1965-10-14
- Page : The What Cheer Patriot Chronicle, volume 86, number 29, page 07/11: Obituary Bertha Riffel
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Code HTML : Online archive: scan of original
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