Outstanding Men of British Guiana

http://www.stabroeknews.com/2009/guyana-review/06/30/history-six-outstanding-men-in-british-guiana%e2%80%99s-history/

http://www.archive.org/stream/stormvansgravesa02stor/stormvansgravesa02stor_djvu.txt
http://www.stabroeknews.com/2009/features/06/14/laurens-storm-van-%E2%80%99s-gravesande-guyana%E2%80%99s-greatest-governor/
http://www.guyana.org/features/guyanastory/chapter18.html
http://www.tower.com/tower_search/search_1.cfm?keywords=laurens%20storm%20van%20s%20gravesande


http://en.wikipedia.org/wiki/Walter_Roth
http://adb.anu.edu.au/biography/roth-walter-edmund-8280