Tim

For simple factual corrections to the VWML site, all it needs is for someone to email the Library with the information.

However, the position with such things as performers' names is a bit more complicated. The cataloguing starts from the documents being catalogued, so if the collector records a name as 'Barratt', then that is how in will appear in the Performer field. Cataloguers generally have neither the time nor the knowledge to go behind the information as given the document and check on its accuracy -- and as you've demonstrated it can require quite an bit of research to establish the truth. You'll find the same is true of the Roud indexes -- Steve records names etc as he finds them in the sources, and the same name can appear in many variant forms.

That said, I would agree that there needs to be a system whereby corrections like this can be added to the record. Maybe the correct name could be added in square brackets, and a note put in the record citing the source for the information. I could suggest this to the VWML (I only work there as a volunteer, so I can't speak for them).