- Ethel M. Ehrhart
 Death - 1931 - Indiana, USA - Walter Hatton Fenimore
 Death - 1931 - Pennsylvania, USA - Helen M. Kochersperger
 Birth - 1931 - Philadelphia, Philadelphia County, Pennsylvania, USA - Marie Elise Barmettler
 - Robert Gene Bledsoe
 - Daniel Guggisberg
 - Rosalie Hofmann
 - Frederick [I] Kochersberger
 - Donna Lorea Davis
 - Gottfried Riedwyl
 Death - 9 March 1931 - Vermes, Jura (formerly Bern), Switzerland - Johanna Martha Issemann
 - David Kochensparger
 Death - 13 March 1931 - Junction City, Jackson Township, Perry County, Ohio, USA - Johannes Guggisberg
 - George William [I] Robinson
 - Hans Waltert
 - Christian Guggisberg
 Death - 18 April 1931 - Haltli bei Obermuhlern, Bern, Switzerland - Rosette Balsiger
 - Anna Elizabeth Collar
 Death - May 1931 - Philadelphia, Philadelphia County, Pennsylvania, USA - Philipp [VI] Kochersperger
 Death - 2 May 1931 - Rittershoffen, Kreis Weissenburg, Niederrhein, Alsace, France - Mary Hannah Phile
 Death - 8 May 1931 - Sterling, Whiteside County, Illinois, USA - John Guggisberg
 Death - 11 May 1931 - Loretto Hospital, New Ulm, Minnesota, USA - Marie Agathe Ackermann
 Death - 13 May 1931 - Mulhouse, Alsace-Lorraine, France - John C. Kochersberger
 - Johanna Guggisberg
 - Magdalena Guggisberg
 - Anna Speich
 - Friedrich Streit
 - Pearl Virginia Kochersperger
 Birth - 13 June 1931 - San Francisco, San Francisco County, California, USA - Margaret A. Kokensparger
 Death - 19 June 1931 - Reading Township, Somerset, Perry County, Ohio, USA - Friedrich Guggisberg
 - Rudolf Guggisberg
 Death - 8 July 1931 - Hofstetten auf dem Belpberg, Bern, Switzerland - Anna Ida Walther
 Death - 13 July 1931 - Bannmatt bei Niedermuhlern, Bern, Switzerland - Friedrich Schenk
 - Christian Guggisberg
 - Charles F. Martzolff
 - Michael Senger
 - William Lewis [II] Streit
 - Antoinette Martinelli
 - Thomas Nelson Peacock
 - Robert Christopher Kochersperger
 Death - October 1931 - Philadelphia, Philadelphia County, Pennsylvania, USA - Hans Rudolf Streit
 - Anna Maria Häberli
 - Adolf Max Guggisberg
 - Fritz Guggisberg
 - Hansruedi Guggisberg
 - Hedi Guggisberg

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