Kathy, my thinking too, I always add the location/s to the unsourced template, I would imagine Sourceres like to work in particular locations, especially when looking up BDM registries.
In this circumstance I don't see the unsourced template as somthing, derogatory, but as means for a sourcerer to locate the actual source, (if it exists). It's not evident that the record does exist, not even the registration number, which I think would be a minimum to someone else locating the record.