death records

I'm trying to find my great great grandparents Elizabeth F. and George J. Hawkins. Their last known location was in Cushing. I think George died between 1920 & 1930 and Elizabeth's last appearance on the census was 1930. Elizabeth's maiden name is McFarland. Elizabeth was born in KY about 1853 and George about 1856 also in KY. Any help would be greatly appreciated.
Thank you,
Linda Godsey