My Kassyan's from the Ukraine and Ontario

My Grandfather was Gerald Lloyd KASSYAN who was born in 1911 in the Ukraine. I don't know who his mother was, apparently she died in the Ukraine I would guess in the 1930's. His father was Atanazy KASSYAN. Gerald was a musician, music agent, teacher, nut and candy store owner and real estate agent in Toronto, Ontario, Canada. Both died in Ontario.

I would love to hear from anyone who has any more information!