Here's a list of authors who we know about so far:

Marian Allen
Fedora Amis
Albert Bell
DC Brod
Trace Conger
Ruth Dudley Edwards
Monica Ferris
John Gilstrap
Parnell Hall
T. Lee Harris
Laura Hawks
Maureen Jennings
Roger Johns
Ellen Kuhfeld
Peter Lovesey
Molly MacRae
Pearl R. Meaker
M. Ruth Myers
Elaine Orr
Tony Perona
SJ Rozan
Larry Sweazy
Charles and Caroline Todd
Reavis Z. Wortham
Sally Wright