text_combined: david poole rspkccsubcca sorry announce passing henry kyburg jr henry active participant uai many years forwarding following message ken ford dear colleague deep sadness inform henry kyburg died yesterday henry professor university rochester senior research scientist ihmc friend mentor many us treasured quiet cheerfulness wisdom much important scientific philosophical work uncertain reasoning know speak us sending ihmc condolences wife sara kyburg truly ken fri 08 aug 2008 000958 0800 uai passing henry kyburg