G. T. Schjeldahl, 1947, 1958-1960, 1966-1975, 1981-1986, 1991-1997

The Correspondence subseries contains three files of correspondence letters. One is Shelly's correspondence from 1947 through 1997. The James Womack file contains his correspondence from 1971 through 1976, as well as the letter indicating the Company name change from Schjeldahl to Sheldahl. The Ford Motor Company file contains Shelly’s correspondence with them in 1974 through 1975 regarding retrofit energy saving devices used for cars, and other emission control devices which improve fuel economy and contribute to energy conservation. This file also has copies of newspaper articles related to emissions and energy conservation.