Illinois, Deaths and Stillbirths, 1916-1947 on ancestry.com gives this record:
Alexander Gladkowski
birthdate: 22Aug1885 place: Zumbrucka, Poland
death Date: 08Jun1943 place: Rockdale, Will, Illinois
burial date: 12Aug1943 place: Joliet Township, Will, Illinois
Cemetery name: Holy Cross
death age: 57
race: black
marital status: M
residence: Rockdale, Will, Illinois
father name: Frank Gladkowski
father birth place: Zumbrucka, Poland
mother name: Veronica
mother birth place: Poland
spouse name: Martha
FHL film number: 1983456