A "resource person" is someone who is knowledgeable and experienced in a particular subject or field. They are often asked to provide information, advice, or guidance to others who need help or support in that area. Full definition
My career goals is to be an excellent Human Resource person specifically in Training and Development. (members.climber.com)
And so if you've got some parents who are interested, they may like to be resource people for other parents. (kidsmatter.edu.au)
The first theory, social capital theory, centers on resources: The more resources the people in your personal network have, the more you will benefit from them. (sciencedaily.com)