https://case.edu/ech/articles/r/ringwall-rudolph
RINGWALL, RUDOLPH | Encyclopedia of Cleveland History | Case Western Reserve University
May 11, 2018 - RINGWALL, RUDOLPH (19 Mar. 1891-26 Jan. 1978), violinist and conductor, was born in Bangor, Maine, son of Knute and Teckla Ringwall. He graduated from...
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https://www.adventhealth.com/doctors/robert-ringwall-pa-c-1558187757
Robert Ringwall, PA-C | Neurosurgery | Castle Rock, CO | AdventHealth
Robert (Robbie) Ringwall is a dedicated neurosurgical physician assistant committed to providing top-quality, patient-centered care.
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