Hello all,
I was in a similar position to jockie, but had a suspicion of what the oeuvre was, from about 4 extracted sequences of letters. I found the statement by which the grid entries were defined very helpful to completely populate the grid. BUT that still left me with some extracted sequences that were not altogether obvious, particularly 31a, 11a and strangely enough 7a.
It was then a process of working back from the 12 principal roles to deduce the extracted sequences! I must admit that I would not really considered there to be 12 principal roles! Rather a total of 12 roles, unless of course I am missing something or somebody!
I rather agree with jim360, being subtle is far better than a direct answer, it is also more challenging for the contibutor!
Congratulations to your daughter djawhufc, an excellent prize for a potential calligrapher!