from the link on the page:
Cheryl Matrasko is a Network Analyst for the department of Networking and Communications at a prominent Chicago hospital. Formerly the LAN Administrator for Northwestern University Medical School - Department of OB/GYN, and assistant LAN Administrator to the previous MIS of the School of Law.
She started Aikido in 1965, studying under Isao Takahashi as her first instructor. She enjoyed working out under many well known Aikido instructors during her tenure with Takahashi Sensei, such as Yoshihiko Hirata, 4th Dan, to name only a few and and many more thereafter following his death in 1971. Cheryl has dedicated time with instructors in Northern Shaolin Long-Fist, Seven Stars Praying Mantis, and Daito-Ryu Aikijujitsu to extend her martial arts education and perspectives. Currently, she is instructing Aikido at Northwestern University's Chicago Campus and supporting Aikido World Journal.