Yakupoğlu, Ahmet, 1920-2016 (Personal Name)

His Ahmet Yakupoğluʼnun fırçasından Boğaziçi, 1983: p. 11 (b. Kütahya 1920; Turkish flutist and painter) used surname Çalışel until 1964)

Ahmet Yakupoğlu, 2016: volume 1, page 16 (born 1920 in Kütahya) page 18 (died October 2, 2016)