Question: What is the date of death of Robert B. Claytor's mother?
Sentence (from "Gertrude Harris Boatwright Claytor"): Late in the 1920s Claytor began publishing poetry in such periodicals as the "Carolina QuarterlyFlorida Magazine of VerseGeorgia ReviewNew York TimesPrairie Schooner", and "Saturday Review of Literature".
Relevant evidence: No