I’m Kate - my daughter Alison O. went to Queens with Steve and then they both attended MIT for their masters and PhD degrees. We always enjoyed seeing with Steve when we visited - always pleasant, always smiling, always with a cool story  - and he and Alison had so much fun together.I want to draw your attention to a lovely tribute printed in the Queen’s alumni magazine...https://engineering.queensu.ca/news/2019/08/a-tribute-to-steven-keating-artsci-10,-bsc-10.html