Retraction

In the previous post, I attempted to identify two of the performers in this post. This morning, I have a slew of e-mails on this, some telling me I'm right, some telling me I'm wrong…and the ones telling me I'm wrong do not agree on who those performers really are. So I hereby retract (and have deleted) my identifications. If you think you know for sure, please tell me why I should trust your identifications or how I can verify them online. Thank you.