In my opinion, it is unnecessary to doubt her age, the nursing home where she lives is at the junction of the Nishi-ku and the Sawara-ku. It's normal for a person's own home and nursing home not to be in the same district. For example, Mitsu Toshima and Shizuko Otani. If she was born in 1910, very few people would say that it was her 110th birthday instead of 109th. Moreover, there are indeed two people born between 1908.9.16 and 1909.3.31 in Fukuoka City.