IDNIYRA Class Secretary Deb Whitehorse reports: It is with great sadness that we share with you the passing of Mark “Doctor” Christensen US4824. Mark sailed home on Saturday, December 14, 2019 which was also the first day of the Great Western Challenge, a regatta he was closely connected with. He was a highly competitive and skilled DN racer and part of a group of Minnesota DNers whose passion has helped to bring new people to the sport. Mark was a key member of ice scouts who were responsible for getting sailors from all over North America, Europe, and Russia to join together in Minnesota for the first fun regatta of the season. He was a top ranked DN racer and relished battling on the ice against his close friends, be it scrub racing or continental regattas. DN sailors from around the world extend our deepest sympathies to Mark’s family, his girlfriend Lisa, and to the Minnesota Ice Sailors. Funeral services are pending.