Since our founding by E. LeGrande Nelson in 1954, Cooper Norman has grown to become the #1 public accounting firm in reputation for quality service and innovative planning ideas. The Firm has operated under the names of Nelson Beckstead & Waldron; Severn Ripley Doorn & Co.; Beckstead Cooper Co. and Cooper Norman Jirovec. In 1979, The Firm joined CPA Associates International, the oldest association of its nature. In 1988, the Firm opened an office in Idaho Falls by acquiring the public accounting practice of Ferguson Rooks Williams & Co., CPA’s. The Idaho Falls practice is one of the oldest in Eastern Idaho dating back to its founding in 1946.