When Chester Ensign Cookson was born on 25 August 1868, in Minnesota, United States, his father, Leon Martin Cookson, was 20 and his mother, Ruth E Fenno, was 20. He married Lena Knutsen on 2 November 1892. They were the parents of at least 2 sons and 2 daughters. He lived in Judicial Township 5, Merced, California, United States in 1940 and New Delhi, Delhi, India in 1944. He died on 10 August 1944, in Merced, California, United States, at the age of 75, and was buried in Turlock Memorial Park, Turlock, Stanislaus, California, United States.
English (Lancashire): from Middle English cok ‘cook’ or the surname Cook + son, denoting either ‘son of (the) cook’ or ‘son of (a man called) Cook’. See Cook .