found: His Scrieri alese, 1985:t.p. (Tadeu Hâjdeu) p. vi, etc. (b. 5/6/1769, of a Moldavian family that had emigrated to Poland in 1673; Tadeusz Hyżdeu (Hasdeu); studied at univ. in Cracow) p. xii (Tadeu Hasdeu; returned to live in Moldavia at Cristinești, 13 mi. from Hotin) p. xvii (d. 10/12/1835 Cristinești) cover (signature: Tadeusz Hyżdeu)
found: Estreicher, Bibl. polska:v. 2, p. 132 (Hiżdew, Tadeusz) v. 18, p. 226 (Hiżdeu, Tadeusz)
found: Scrieri, 2014:p. 9 (Thadeu Ioan Hâjdău (1769-1835); father of Alexandru and Boleslav Hâjdău)
found: Wikipedia, Aug. 25, 2016:(Tadeu Hâjdău)
notfound: Orgelbrand.