Bachelor, University Warsaw, Poland, 1953. Doctor, University Warsaw, Poland, 1971. Master of Arts in Archaeology, University Poznan, Poland, 1955.
Chief archeologist Bia|ystok (Poland) Voivodeship, conservator archeological monuments, Office for Protection of History Monuments, 1955-1964; chief archeologist Bia|ystok (Poland) Voivodeship, conservator archeological monuments, District Regional Museum, Bia|ystok, 1965-1974; director, District Museum, Bia|ystok, 1974-1980; director, State Archeological Museum, Warsaw, since 1980. Associate professor Bia|ystok branch Warsaw U., 1974-1977.
Councillor Provincial Council Voivodeship, Bialystok, 1969-1981. Chairman Committee Polish Archeological Museum's, Warsaw, since 1988, Science Society Bialystok, 1974-1982. Board directors Polish national committee International Council Museum's, Warsaw, since 1986.
Active Association Polish Museum's.
Józef and W|adys|awa (Sowinska) J. Married Danuta Wadecka, October 9, 1952. 1 child, Pawel-Olaf.