I. 1 Izvirniki: Oton Detela (1, 1880), Fran Govekar (12, 1903–1907), Ivan Hribar (3 + 1 priloga: spremni dopis Frana Ilešiča [Dragotinu Lončarju?] iz 1913, 1887–1907), Danilo Majaron (5, 1885–1887), Franjo Šuklje (1, 1886), Pavel Turner (64 + 4 priloge, 1885–1912)

I. 2 Pisma v prepisu Vatroslava Holza: Vatroslav Holz (20 + 1 priloga: dopis Frana Ilešiča iz 1913, 1903–1911)

II. 1 Izvirniki: Franc Ksaver Meško (3, 1906–1907), Pavel Turner (1, 1906)

II. 2 Fotografije [izvirniki v Arhivu RS kot dar J. Vošnjaka; prefotografirano 31. 12. 1962]: Darilno pismo J. Vošnjaka Deželnemu muzeju (1, 1908), Josip Apih (2, 1903), Anton Aškerc (7, 1886–1904), Janez Bleiweis (2, 1870–1879?), Oroslav (Juri) Caf (1, 1866), Matej Cigale (2, 1886), Josip Cimperman (7 + 1 priloga, 1886–1890), Etbin Henrik Costa (1, 1863), Andrej Einspieler (13, 1865–1882), Simon Gregorčič (11, 1888–1889), Mihael Hermann (Herman) (13, 1864–1876), Karl Sigmund Hohenwart (1, 1883), Benjamin Ipavec (3, 1872–1891), Josip Jurčič (41, 1868–1881), Anton [?] Klodič (1, 1880), Štefan [?] Kočevar (8, 1864–1880), Andrej Komel pl. Sočebran (4, 1889), Gregor Krek (1, 1880), Fran Levstik (1 + 3 priloge, 1870), Matej Lutman (1, 1890), Ivan Macun (2, 1881–1882), Fran Ksaver Meško (3, 1902–1903), Matija Murko (3, 1887–1905, Josip (ps. Pribislav, Rastislav) Ogrinec (2, 1872), Alois Pražák [?] (4, 1880), Matija Prelog (1, 1866), Božidar Raič (7, 1874–1884), Franc Rapoc (9, 1868–1874), Radoslav Razlag (19, 1864?–1879), Jožef (Josef) Schneid vitez Treuenfeld (74 + 2 prilogi, 1879–1884), Vjekoslav Spinčić (2, 1880–1881), Josip Stritar (8, 1866–1888), Luka Svetec (16, 1866–1882), Jurij Šubic (Šubić) (2, 1888), Josip Šuman (8 + 1 priloga, 1866–1908), Tomšič (8, 1868–1871?), Davorin Trstenjak (40, 1872–1882), Pavel Turner (28, 1887–1906), Andrej Winkler (4, 1880–1881)

Josip Freuensfeld > Davorin Trstenjak (1, 1890)