The Alfred-Washburn Center is non-profit that helps the less fortunate members of our society. I have been their volunteer web developer for the past 5 years. Originally the site was a custom WordPress theme, but for ease of use and stability it was rewritten with a custom CMS.
The CMS is written in Python using the Django framework. Bootstrap was used for the CMS control panel. The site itself was co-designed with Travis White and is a responsive design.
If you wish to visit the site it can be found at alfredwashburn.org.