In a form of digital copies, there are valuable and interesting collections of manuscripts recorded. There are letters of writers and scholars to Józef Wiśniowski, document of the archbishop Jan Rzeszowski - 1433, proving the fittings of the church in Buszcza village; privilege of organizing market fairs in Łańcut from 1726, issued by king August II; the Sejm speeches from the eighteenth century.
Załuski, Józef Andrzej (1702-1774)
Halicki, Daniel (oprac.)
Konopnicka, Maria (1842-1910)
Horatius Flaccus, Quintus (65-8 a.C.)
Niemojewski, Andrzej (1864-1921)
Niemojewski, Andrzej (1864-1921)
Lorenz, Edward
Michał Korybut Wiśniowiecki (król Polski ; 1640-1673)
Kostkiewicz, J. (lit.)
Przerwa-Tetmajer, Kazimierz (1865-1940)