Buried along with mother and sister Tyyne in Oulu. The gravestone has his name, but the dates of birth and death of his father.
I have a record in my private genealogy site from Aug/Sep 2008. One of Antti's nephews remembered that his father Arvi had asked for this mistake to be corrected already in 1961 when Iida, her mother, died. It is in fact Antti Ilmari, Arvi's brother, who is buried on this spot. The mistake did not get fixed and so the engraving work for Iida did not have to be paid for, either...
T > Timonen-Nissi > Antti Ilmari Aukustinpoika Timonen-Nissi