The story
The company was founded in 1926 by Armenian-American David Der Hairabedian of Fresno, California. Der Hairabedian first roasted sunflower seeds in his grocery store and packaged them in individual servings for a nickel. Eventually, his two sons, Ara and Aram, joined him in marketing the seeds to other retailers.
David was later owned by Sunmark, Rowntree Mackintosh Confectionery, and Nestlé. Conagra Brands acquired David & Sons from Nestle USA in December 2001.
From Wikipedia’s article on David Sunflower Seeds, shared under CC BY-SA 4.0.4