Gavin and Julie Atkin will be contributing, and I'll be reviewing the excellent genealogical work completed by Liz Draper (unless she can make it in person). She has traced nearly every singer from Dorset who sang to the Hammond Brothers in 1906-08, and most have songs in the books. It should be a good event in an excellent weekend meeting.
If there is enough interest, I will be making the info available online for free.