Where can I find a dojo with an Shihan Instructor?

Henry Ellis wrote: Over 50 years ago I asked Mikoto ` Masahilo` Nakazono sensei for a letter to visit the AikiKai, he looked surprised, and asked " WHY ? " I thought that was a bit of a dumb question, but I did not dare show that in my expession,,,, Henry Ellis British Aikido History www.british-aikido.com

Henry,
A mere 25 years ago, I asked Akira Tohei Shihan for a letter of introduction to Aikikai Hombu Dojo and Shirata Sensei's dojo in Yamagata, Japan.
He also had a one word answer, "Why?", and I too thought it was kind of a dumb question.
Although I had a wonderful and memorable Aikido pilgrimage, it sometimes takes a long journey away to really appreciate home.
Cyril Landise

Henry Ellis wrote: When I last met with Chiba Shihan, he did speak of easing down on his travels, `slowing down a little`, I just don't see full retirement. one never knows ? To study with one his senior students will give a person a chance to study on occasion with one of last of the ``few`` direct students of Osensei.

My sensei was/is a student of his and that was the impression I got. I could be wrong, but what I know is my sensei keeps encouraging us to train with Chiba sensei while we still can....

Katherine makes a good point about the teaching schedule.

Imaizumi teaches the classes five nights a week, including the beginner classes.

I think all of the suggestions are wonderful instructors and I would be proud to study with any of them. (I have trained at seminars with many from the list.) I was taught, however, that "aikido teaches." Training regularly with diligent partners and finding a sensei or as a guide with a supplement of seminars to create contrast has been a formula that should allow any student to develop to the limits of his potential. As someone said earlier, rank is not the issue but rather the ability of an instructor to communicate with you. I would, however, also add Sato Sensei to your Chicago list.