L. L. Robson's 1973 article, The origin and character of the first A.I.F., 1914-1918: Some statistical evidence, published in Historical Studies volume 15, indicates approximately 18% of the first AIF was born in Great Britain, with another 3% born in other countries, and 2% unknown. These numbers were drawn from a study of over 2000 First World War service records. It is possible to search for free in the National Library of Australia Archives at http://discoveringanzacs.naa.gov.au/browse/places. Where it is requested to put in a Town or Suburb, you can get results by putting in "York", or an English town name. In my main towns of interest alone, for Beverley there are 22 names and 15 addresses, and for Hull very many more, plus surrounding towns. Of course you can also search by name. In most cases, digital copies of the serviceman's record of service can be viewed. In this centenary year of Gallipoli and the origins of the Anzac tradition, to which so many British contributed and for which so many fell, it may be appropriate to see who of your family or district enlisted on the other side of the world from their birthplaces. Of course, no records are 100% complete, or completely accurate. Bill Webster