The Michigan Death Index 1971-1996 shows a John Geverink b. 14 August 1892, died 7 February 1971. Residence at time of death was Detroit, Wayne County, Michigan. Cannot find a Mary or Maria in the Michigan Death Index nor in the Social Security Death Index.
If you are willing to wait for at least two months or more, I can order the microfilms of the Detroit Newspapers to be sent to my local library and I will look for John's obituary. There is no way to look for a death notice or an obituary without a date of death. There are no indices to obituaries for the Detroit newspapers.
If you want me to order the films, please email me directly at :firstname.lastname@example.org
Put "Geverink Wayne County Query", in the subject line.