We found my great grandmother’s name on our grandfather’s Immigration passport. She lived at 38 Muranowska in Warsaw. Our great grandfather emigrated to Canada and left her and my grandfather behind. He later divorced and remarried a Polish Canadian. We don’t know what happened to our great grandmother but heard she died and that’s when our grandfather was sent to live with his father. We want to find our family in Warsaw, perhaps a copy of her birth/death certificate and maybe location of her grave. We would love any help you could provide!