Since none of the essential ingredients of linked data [1] existed in 1979, I think it's unlikely that UTLAS had linked data as it is understood today.

[1] http://www.w3.org/DesignIssues/LinkedData.html 

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John Hostage 
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> -----Original Message-----

> UTLAS had linked data with MARC in 1979.  Moving to linked data does not
> require leaving MARC.