In later life Banach tried to find out who his mother was but his father refused to say anything except that he had been sworn to secrecy over her identity.
Mamaya sa buhay Banach sinubukan upang malaman kung sino ang kanyang ina ngunit ang kanyang ama ay tumanggi sa sinasabi ng kahit na ano maliban na siya had been hurado na lihim sa kanyang pagkakakilanlan.