The discipline of public health and preventive medicine in Australia and Ne
w Zealand had its genesis in the advocacy of 18th and 19th century military
pioneers. Military (Royal Navy and British Army) surgeons were posted to A
ustralia as part of their non-discretionary duty. Civilian doctors emigrate
d variously for adventure, escapism and gold fever. One group, a particular
ly influential group disproportionate to their numbers, came in one sense a
s forced emigrants because of chronic respiratory disease in general, and t
uberculosis in particular. Tuberculosis was an occupational hazard of 19th
century medical and surgical practice throughout western Europe. This paper
analyses six examples of such emigration which had, perhaps unforeseen at
the time, significant results in the advancement of public health. Such emi
gration was in one sense voluntary, but in another was forced upon the vict
ims in their quest for personal survival. In Australia, such medical indivi
duals became leading advocates and successful catalysts for change in such
diverse fields as social welfare, public health, the preventive aspects of
medical practice, child health, nutrition and medical education. A number o
f such public health pioneers today have no physical memorials; but their i
nfluence is to be seen in the ethos of medical practice in Australia and Ne
w Zealand today. Their memory is further perpetuated in the names of Austra
lian native wildflowers and trees that symbolise not only a healthy environ
ment but the longterm investment, accrued with interest, of the institution
of public health measures for which their advocacy achieved much success.