Mrs. Janet K. Brittain (née Dieffenwierth), resident of LA County for 74 years passed away on May 5th, 2021 in West Covina CA. Mrs. Brittain was born in Los Angeles, Ca on April, 6, 1947 and is survived by her son, Gregory D. Brittain Jr. and sister Denise Rasmussen. Her services are under the care of Oakdale Memorial Park and Mortuary in Glendora, CA.