John Bartholomew's Half Inch Maps: 1895 - 1960 An Overview by Kit Batten Copyright 2020. I completed this short essay on the Bartholomew Half-Inch maps shortly before donating my collection to the Devon Heritage Centre in Exeter. The essay is divided into three parts 1. The Bartholomew Company and the Development of the Half-Inch map series until 1960. 2. A list of examples of the North Devon sheets donated to DHC with different states. 3. A list of examples of the South Devon sheets donated to DHC with different states. Click North Devon or South Devon to go directly to examples of different states. 1. The Bartholomew Company and the Development of the Half-Inch map series until 1960. The Bartholomew Company The first in a long line of engravers, George Bartholomew was not the real founder of the Bartholomew family business, this would be John Bartholomew, George's son. Daniel Lizars was a successful and well-respected engraver with hi...