Willoughby Chase Parr and Laura, daughter of Colonel Francklyn of Speen Hill Lodge, Newbury.
[1] His maternal grandmother was Jane Francklyn, daughter of Sir Samuel Cunard, baronet.
He played Rugby football for Oxford University 1913–14, and had a half-blue for rifle shooting, 1913–14.
His obituary in The Times mentions "an early tendency to compare the Hoxton boys with his beloved Dinka tribesmen, initially somewhat to the disadvantage of the former".
He was a prominent member of the congregation of the Temple Church, Vice President of the British and Foreign Bible Society, and Vice President of the Church Missionary Society.