The typographical error.
Here we find Abduraim Aga Khodzhaev on the list of confirmed nobles of Tavrida. It doesn't seem too much of a stretch to assume him to be one and the same as Abduraman Aga Kodzhaev, who was inscribed in the noble register in 1851. It would help if the noble register entry included his wife's name, which, according to the 1861 list, was Kutlu Sultan.
Ought I to attribute the source of my frustration to relatively benign clerical sloppiness or to the age-old politics of gender?