Your Grandparents Iwanciw (Hutsuls) were probably born when this region was called Galicia/Halychyna, administered by ethnic Poles for the AUSTRO-HUNGARIAN EMPIRE. Ottynia was a fair sized town w/a population of about 4,500 people. It had its own Greek Catholic Parish. Back then, Ottynia was also in the Tlumacz District.
ShetLinks -- Ottyniahttp://www.shtetlinks.jewishgen.org/Ottynia/ottynia.htm#Otty...
Today Ottynia is in the Kolomeya Raion/District of the Ivano-Frankivska Oblast/Region. It is 1/3 of the size it was before WW2.
HalGal: Vital Recordshttp://www.halgal.com/vitalrecords.html