Colonel James Henry Bowker , was a South African naturalist and soldier. He was coauthor with Roland Trimen of South African Butterflies .
He was the ninth and youngest son of Miles Bowker , and Anna Maria Mitford, , both 1820 Settlers. James Henry Bowker was born on a farm known as Tharfield, on the Klein Monden River, north of Port Kowie.
Source: Wikipedia