Each pioneer was promised 3,000 acres ( 12 km ) of land and 15 mining claims in return for his service .
At Rhodes 's insistence , several sons of the Cape Colony 's leading families were also included .
Each pioneer was promised 3,000 acres ( 12 km ) of land and 15 mining claims in return for Rhodes ' service .
At Rhodes 's insistence , several sons of the Cape Colony 's leading families were also included .