Appalled at the reading disabilities in her third-grade classroom in New Jersey, Geraldine E. Rodgers requested a sabbatical leave to observe first-grade reading instruction and to test resultant second-grade oral reading in the United States and Europe. In 1977-78, using a portion of a silent reading test form from IEA (International Association for the Evaluation of Educational Achievement), which she had translated commercially into Dutch, Icelandic, Swedish, German and French, she tested the oral reading of about 900 second graders in their own languages in the United States, Holland, Luxembourg, Sweden, Germany, Austria and France. She 'discovered' that different and opposite types of readers (or mixtures of those types) are developed, depending on the emphasis on 'sound' or 'meaning' in first-grade. She later stumbled across the fact in a 1912 University of Chicago article that her 1978 'discovery' of different types of readers had already been announced seventy-five years before by a German researcher, Oskar Messmer, in 1903, who labeled the types 'objective' (for 'sound') or 'subjective' (for 'meaning'). Since 1978, she has done extensive work at the Library of Congress, the Harvard libraries, the British Library in London, the University of Chicago library, and many other libraries, to try to find out why such facts in the history of reading as the Messmer research have been buried. The Hidden Story summarizes her findings.