Re: Shishka, 1600. AL
My husband's great-grandmother was Magda Sheshka/Sheeshka/Syzka, 1868-1935, d/o Alesins Sheshka and Pelagis Kushniryk. Magda came to Canada to join her husband Gresko Skavinski in 1900. Her death certificate lists her father's birthplace as 'Ternopol, Poland'. Her nephew, Yurko Syzka, came to Canada in 1905 from Galicia. I hope this gives you some useful leads. I haven't tried to follow this family at all but would be
interested in hearing if you are connected and if you find them.
There is also a Shishko/Shiska surname message board at www.familyhistory.com