Fire surveyor

TIBKAT | 1.1972 - 22.1993

Canadian surveyor

Canadian Institute of Surveying | TIBKAT

Professional surveyor

TIBKAT | Nachgewiesen 10.1990 - 22.2002,8

Australian surveyor

TIBKAT | 1.1928 - 48.2003,1

Professional surveyor magazine

TIBKAT | 22.2002,9 - 34.2014,6