Hannelius Jan (07.12.1916 – 07.03.2005)
Finnish problemist. Judge for Chess Compositions in 1957 and International Master for Chess Compositions in 1977. Honorary President of PCCC (1974-1986). Specialist in two and three-movers, he composed more than 1000 problems. Author of 100 ar Findlanska Miniatyrer (1984), 512 finländska miniatyrer (1992) and the famous Hannelius-theme still popular in two-movers.