On Mon, 16 May 2011 05:03:04 -0700 (PDT), Richard Smith <[email protected]> wrote: >On May 16, 8:20 am, "Peter J. Seymour" <[email protected]> >wrote: > >> This set me wondering: How large do single trees get? So here is a >> challenge for you all, What is the largest single-tree gedcom you are >> aware of, does it consist of sensible data, and more to the point how >> large is it (File size in bytes and number of individuals, both metrics >> are needed please? > >If you google for 'BUELL001.GED' you'll find a large GEDCOM file by >someone called Matthew James Buell. It is about 3MB and contains >about 9,900 individuals, virtually all of whom are related. (It's a >descent from the biblical Adam, so clearly parts of it are dubious.) >I'm sure I've seen larger databases, though I'm not sure I can point >you to one at the moment. But this one seems to have become a fairly >standard test database for applications as it's large enough that it >can starts hitting scalability issues and diverse enough to include a >large range of dates and nationality. I have something like 15500 individuals in my database, nearly all of whom are related in some way to my children. The exceptions are mostly the children of unrelated spouses -- if A is the relation and has children by B, then those children are related, but if B has children by C, those children are not related. I have sometimes included those. -- Steve Hayes from Tshwane, South Africa Web: http://hayesfam.bravehost.com/stevesig.htm Blog: http://methodius.blogspot.com E-mail - see web page, or parse: shayes at dunelm full stop org full stop uk