Unidentified employees and their children gather for anniversary celebrations and a service awards banquet, about one year before the Porterville plant was declared a Superfund site responsible for contaminating groundwater and soil with lead, Freon-113, trichloroethylene, and 1,1-dichlorethylene. Identified individuals include Penny Rosso, Louis Rosso, and Marshall Black. Photographs not bearing the Edwards Studio stamp are unattributed.
(verso, 2012-002_1173) "Beckman Life, Spring 1985. 50th Anniversary Chronicle. (Center Spread). Porterville. Photo Caption. Lou and Penny Rosso are conversing with Marshall Black, Manufacturing Support Manager of the Porterville plant. Marshall has been with Beckman 11 years."