In NOTED GUERRILLAS, Edwards claimed there was a similar skirmish near Cassville involving Quantrill about this same time. This claim was discussed at length on this thread:
http://history-sites.com/mb/cw/mocwmb/index.cgi?read=3491
The OR accounts of federal movements in Barry County at this time are together here:
http://freepages.history.rootsweb.com/~cappscreek/civilwar/or/orbarry11.html