Jan Jnaiga was born in Tuchów in 1913. His father had PhD in Law. He did a degree in Medicine at the Jagiellonian University of Cracow. After graduating form the Reserve Officers’ Sanitary Training Centre in Warsaw, he became a chief doctor of the I Podhale Rifle Regiment in Nowy Sącz. In the interwar years he organised medical help for the most poor villages of the Nowy Sącz district. He took part in the September campaign and then he was in the Polish troops and fought in France. He participated in the desert campaign of Tobruk. After the war he did scientific work at the Academy of Medicine in Scotland.
With his family he came back to Poland in 1948 and started to work as a head of ‘Lwigród’, where he had worked till his retirement. He was also an activist of the Polish Tourist and Sightseeing Society’ s (PTTK) branch in Krynica. He was a prime mover of the reconstruction of the burnt-out shelter on the top of Jaworzyna hill. He had been a president of the PTTK Cirlce of Krynica for years. When he retired he started to gather materials for monograph on Krynica. He didn’t manage to publish it. He died on May 31, 1987. He was buried in the cemetery in Krynica Dolna.