Working with HTML Templates

Hi all,

I'm beginning to work with HTML Order Confirmation templates (for a Group Sales confirmation) and I'm wondering if something is possible. I know that an order's solicitor is the user id from the security module.  We have stored users' email addresses in the security module.  I would love to be able to pull this email address out and put it in the Order Confirmation.  I know there is a Security/Users/Email Address REST resource, but I'm not sure if/how I can connect that to the Solicitor in the Confirmation and pull out the user/solicitor's email address.  Any ideas on how or if this is a possibility?

Thanks!
Kathleen