[3] After receiving his primary education in Kretinga, Nagevičius studied at Palanga Progymnasium but was expelled for refusing to participate in Orthodox Church prayers.

[2] He continued his studies at the Alexander Gymnasium in Riga [lv], where he became involved in Lithuanian activities through Kipras Bielinis.

[2] He participated in the 1905 Russian Revolution and in 1905–1906 was imprisoned in Kaunas and Šiauliai for the distribution of proclamations by the Great Seimas of Vilnius.

[3] Prior to World War I, he researched ancient cemeteries of Kartena, Kiauleikiai, Kretinga, Maciuičiai, Norgėlai, Pociai, Pryšmančiai, Senkai, Skomantai, Šateriai, Viekšniai.

[1] In 1920, for merits in creating the Lithuanian Armed Forces, he received the homestead of Babtynas Manor [lt] with 20 hectares of land.

[2] In the Polonized Babtai District, he cherished Lithuanian national traditions and organized celebrations of Joninės every year, which were attended by Kaunas' intelligentsia and state leaders.

[2] In 1935, he published a book Mūsų pajūrio medžiaginė kultūra VIII–XIII amžiuje (Material Culture of Our Coast in the 8–13th Centuries).

[1] He was as an adviser to the Kaunas staff of the anti-Soviet resistance organization Lithuanian Activist Front (LAF), and together with other representatives of the LAF (e.g. Stasys Pundzevičius) signed a memorandum Apie Lietuvos būklę pradėjus veikti vokiečių civilinei valdžiai Lietuvoje (English: About the state of Lithuania after the beginning of the German civilian government in Lithuania).

[13] On 18 June 1991, to commemorate the 110th birth anniversary of Nagevičius, a memorial plaque with a bas-relief was unveiled in the lobby of the Vytautas the Great War Museum (sculptor Algirdas Bosas).

[10] In 1995, remains of Nagevičius and his wife were transported to Lithuania and reburied in his birthplace – the old parish cemetery of Kretinga where the entire Nagevičiai family is buried.