Analysis of information sources in references of the Wikipedia article "Elmer Ambrose Sperry" in English language version.
Elmer Ambrose Sperry, Jr., a pioneer in gyroscope development and son of the founder of the Sperry Gyroscope Company, died here Saturday at the age ... He was born May 9, 1894, in Cleveland, a son of Elmer Sperry, Sr. and Zula ...
Elmer A. Sperry, inventor, died yesterday morning at St. John's Hospital, Brooklyn, from complications which set in after he had recovered from an operation for gallstones six weeks ago. He was in his seventieth year.
Edward Goodman Sperry, vice president, treasurer and a director of Sperry Products, Inc., Hoboken, ...