Cornelis Boer was born in 1899 as son of a shop keeper. His profession is entered in the Gouda records as ceramics painter sometime after 1912 and before 1920. He lived with his parent until 1926 when he moved to his own accommodation and married in 1927. At some point after 1926 (likely after 1930) his profession is changed in shopkeeper, later as shopkeeper in colonial products.
Worked at PZH from earliest 1911 until possibly 1931