Question: Who is the paternal grandmother of Dudley Ryder, 6Th Earl Of Harrowby?
Sentence (from "Dudley Ryder, 6th Earl of Harrowby"): He served in local government as an Alderman of London County Council from 1932 to 1937, then as an elected County Councillor from 1937 to 1940.
Relevant evidence: No