In January of 2018, you added an article on Joseph Dougherty, the Canadian buried in the Grange. His sister was my grandmother, Martha Doherty Clements who lived at Lower Tully across the border in Londonderry before emigrating to Canada.
Based on medical reactions and testing of descendants in both families, Joseph and Martha were carriers of a genetic condition, known as malignant hyperthermia or MH. The University of Cork has centre for study of this condition which is known in Irish families. It is an autosomal dominant condition. DNA testing is not definitive and muscle biopsies are often used. Links for description https://en.wikipedia.org/wiki/Malignant_hyperthermia https://www.mayoclinic.org/diseases-conditions/malignant-hyperthermia/symptoms-causes/syc-20353750 Until surgery under anesthetic became common, this condition was unknown. The condition would have come from one of Joseph's parents either William Doherty (1842-1926) or Jane Thompson(1849-1945). William's parents were William Doherty and Peggy Dunn ( no data, haven't searched). Jane's parents were Nathaniel Thompson and Martha Martin( no data, haven't searched). I'm interested in knowing whether there are other descendant families who may have condition whether they know it or not. Dave Clements Bowmanville, ON
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