Stafford Crawley was the brother-in-law of the Earl of Cavan and Crawley's mother was related to the Lords Wraxall, of Tyntesfield and the Lords Aldenham and Hunsdon.
Stafford Crawley was the brother-in-law of the Earl of Cavan who was first married to his sister Caroline Inez Crawley (dsp 1920). His own wife Nancy was related to the Lords Wraxall, of Tyntesfield and the Lords Aldenham and Hunsdon.