re: How to reach retirees for job opportunity

There are many free lance consultancy groups that are made up of retired and current professionals.

My dad is a retired banking exec but "works" a few hours a week through Gerson Lehman Group.

You basically go on their site and pick your industry, the level of expertise you are looking for, and then you can review profiles based on their hourly rate.

LINK

I'm not sure if you're looking to hire someone local or just want to have someone you can bring in as a SME.

This is what my dad does is he works with a few different large law firms and a few times a year they'll fly him in and use him as a SME for various mortgage litigation cases.