In our Carmichael Watson Project we are doing something similar but not completely within EAD. The @authfilenumber value maps to a unique term in our authorities database (which generates MADS xml). The latter has a tag for coordinates (longditude/latitude).
The idea is that these two (and other) sets of xml will ultimately cross reference each other within a managed system (we are currently not at that stage of development yet) and from it different iterations of EAD etc can be generated for sharing/harvesting (e.g. via the Archives Hub).
We haven't looked yet to see how much of the additional content can be included in the EAD itself but it is certainly on my 'to do' list. At first glance I can't see any of the available attributes being specifically suitable for this, so I wonder whether the only solution might be to point outwards to an external resource using <extptr>, e.g.
<geogname>Edinburgh (Scotland)<extptr href="[URI to external resource]"/></geogname>
However I'm not sure if this would be a valid use of this tag.
Grant E. L. Buttars
Deputy University Archivist
Special Collections, Centre for Research Collections
Edinburgh University Library
Information Services, University of Edinburgh
tel: 0131 651 3852
Coming to consult something? Please see http://www.lib.ed.ac.uk/resources/collections/crc/using_crc/
> -----Original Message-----
> From: Encoded Archival Description List [mailto:[log in to unmask]]
> On Behalf Of Jane Stevenson
> Sent: 06 May 2010 14:55
> To: [log in to unmask]
> Subject: Geographic names and grid references
> Hi all,
> Has anyone ever thought about adding grid references to their
> EAD desscriptions? In the UK we have the Ordance Survey grid
> references for places
> system), and we have a contributor to the Hub who would like
> to include these. However, EAD certainly does not seem to
> have a way to incorporate them into the <geogname>.
> I assume there is an equivalent in the States, but I don't
> know for sure.
> Any ideas very welcome.
> Jane Stevenson
> Archives Hub Co-ordinator
> University of Manchester
> Devonshire House
> Oxford Road
> M13 9QH
> Tel. No: +44(0)161 275 6055
> Email: [log in to unmask]
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