It appears that someone (inadvertently) slipped a name into the historical note appendage that shouldn't be there. The boy of the story who dies too young as a soldier is Olga's little brother, Albert, and not Sasha. Albert is the boy in the photograph on the back cover of The Kulak's Daughter. He was a real person. Sasha is an imaginary boy. I hope this clears up any confusion.
I visited the Assiniboine Park Zoo here in Winnipeg last week. The coordinator at the Immigrant Centre where I volunteer had given us passes...