Large bulb growers, circa 1908, offered some of Van Tubergens regeliocyclus, J.J. Grullemans went on to form Wayside Nurseries, Mentor, Ohio in the 1920s. Wayside Nurseries, Mentor, Ohio in the 1920s.
For more information on historic Irises visit the Historic Iris Preservation Society at http://www.historiciris.org/
-- BobPries - 2016-12-13