No answer directly for you but have you tried the STUMPERS listserv? It
is designed to help reference people with questions that have them
"stumped." THe address for sending questions to the list is:
(I do believe the address is all-caps specific)
It can be very useful for just your type of question.
L. M. Lockley Phone: (314) 926-7323
St. Charles City-County Library District Fax: (314) 926-0869
Kisker Road Branch
1000 Kisker Road E-mail: firstname.lastname@example.org
St. Charles, MO 63304-8726
Perseverance pays off!