Football captain Tom Clarke received the 20th annual Swede Nelson Sportsmanship Award from the Boston Gridiron Club on January 22. Tom had been nominated by Coach Bob Blackman for his unselfish and sportsmanlike attitude. ... Blackman, incidentally, already had appeared at 38 sports luncheons and dinners by the time of that Nelson Award dinner... . Dartmouth's squash team broke a 22-match losing streak by beating McGill 5-4. .. . John Clough, former Middlebury ski captain from New London, N. H., whose father and grandfather both attended Dartmouth, is the new assistant ski coach, replacing Gary Vaughan who entered business.