Max Harris (2003) From Iraq to the English Morris: the early history of the skirted hobbyhorse
Mediaeval English Theatre, 2003, Vol.25, pp.71-83
Martin W. Walsh (2003) The Traditional Mummers’ Play in British Political Drama: Edward Bond’s The Fool (1975) and Vincent Wood’s At the Black Pig’s Dyke (1992) ’
Mediaeval English Theatre, 2003, Vol.25, pp.177-186)
Books
Ivan Knox (2003) 50 Original Picture Poems of People and Places around the Finn Valley Area
£9.95
Whilst searching eBay Peter Millington found this item. It includes a poem entitled "'The Christmas Mummers Performances'", and the blurb says that "every poem has one or two illustrative pictures". It might be possible to find other copies of the book but I haven’t found it so far on abebooks!
DVDs
Black Pig Border Morris (2005) Black Pig Border Mummers Play 2004
Only £10 + p&p.
Details: http://members.aol.com/PugwashPig/shop.html.
The Selston Mummers’ play recorded live 17th December 2004 in Derbyshire at the Homesford Cottage, Whatstandwell; The Greyhound Hotel, Cromford; and The Fishpond, Matlock Bath.