I've checked the front page and the obits of the Lake Charles American Press, November and December, 1979, and found nothing on your grandmother, Barbara Jean Williams Deibert Freeman. If you would like to search the archives of the LCAP, check their website at http://www.americanpress.com
For a $10.00 charge per month, you can have access to the archived papers. Also available is a "day pass". Check the website for details.
Good luck in your research,
Maude Ann Gilmore