Ma'lum: Acting

Tug'ilgan yili: 1899-04-24

Tug'ilgan joyi: Dovzhyk, Kharkov Governorate, Russian Empire [now Kharkiv Oblast, Ukraine]

Shuningdek, taniqli: I. Tverdokhlib, Ivan Tverdokhleb, Iwan Twerdochleb, И. Твердохлеб, І. Твердохліб