Most facilities require visitors under 18 to be accompanied by a parent or legal guardian during the visit itself, regardless of whether the minor has been individually approved on the visitation list. Being on the approved list and being allowed through the door alone are two different things. So yes, in most cases your parent would need to be present with you during the visit, and they would need to be on the approved list as well, which means submitting their own application.
The second part of your question is worth asking directly to the facility. Some institutions will allow a minor to visit accompanied by another approved adult who is not a parent or guardian, but that is not universal. Rules vary by facility type, custody level, and state or federal jurisdiction. The only way to get a definitive answer for this specific facility is to call and ask to speak with the case manager, unit counselor, or visitation coordinator. Ask them plainly whether you can visit accompanied by another approved adult visitor rather than a parent, and what paperwork if any that requires.
It is worth making that call before anyone makes the trip. Showing up and being turned away at the door is a situation you want to avoid.
Thank you for trying AMP!
You got lucky! We have no ad to show to you!