[2] Humphreys graduated from the Elsenburg Agricultural Training Institute, Stellenbosch, and moved to Campbell district west of Kimberley.
In 1929 years later he was elected to the Union Parliament as the representative for Beaconsfield, one of the Kimberley constituencies, succeeding David Harris.
His home, Benbow Lodge, including a purpose-built gallery for his art, much of which was from the Dutch and Flemish schools of the 17th century.
This collection, known as Humphreys’ Bequest, comprising a selection of European and British paintings, furniture and contemporary copies of classical sculptures, was initially housed at the Northern Cape Technical College.
The terms of the donation stipulated that a suitable gallery should be built as a more permanent home for the collection, with Humphreys giving money towards the building costs.