Ruth Haring, former US Chess President  passed away, November 29.
She was formerly married to one-time Winnipeg resident GM Peter Biyiasis.

https://www.chess.com/news/view/wim-ruth-haring-1955-2018

https://new.uschess.org/news/wim-ruth-haring-1955-2018/

Jeff Babb played her at the Canadian Open in 1974, and I met her in Las Vegas in 2008.

https://chessmanitoba.blogspot.com/2008/06/national-open-las-vegas-june-6.html

(in strange coincidence, also on that blog  page is a picture of Eric Schiller, who passed away November 3, 2018.

https://new.uschess.org/news/eric-schiller-author-fide-master-dies-63-will-remembered-love-chess/

Source: Chess Manitoba