Seeking Chicago Roller Skaters 50 & Older for a Roller Skating Project

If you know of 50-somethings and older who used to roller skate in Chicago, or who still does, please let me know. I am having the hardest time finding anything on roller skating, so any assistance would be greatly appreciated.

In the meantime, check out the late Dr. Margaret Burroughs, the Founder of DuSable Museum of African American History, as she skates in her 90s.

Thanks for your help!