Question: Who is the father-in-law of Helen Spurway?
Sentence (from "Helen Spurway"): Helen Spurway, J.B.S. and Krishna Dronamraju were present at the Oberoi Grand Hotel in Kolkata when 1960 U.S. National Science Fair winner Susan Brown reminded the Haldanes that she and Botting had a previously scheduled event that would prevent them from accepting an invitation to a banquet proposed by J.B.S. and Helen in their honour and scheduled for that evening.
Relevant evidence: No