| LFK | Collection of Kārlis Straubergs | 880 | Manuscript | 0880-Karlis-Straubergs-04-0005 | lv, fr | | No | No | |
| LFK | Collection of Herder Institute in Riga | 1825 | Manuscript | 1825-Rigas-Herdera-instituts-02-117 | de, fr | | Yes | No | |
| LFK | Collection of Herder Institute in Riga | 1825 | Manuscript | 1825-Rigas-Herdera-instituts-02-317 | de, fr | | Yes | No | |
| LFK | Collection of Krišjānis Barons | 1620 | Manuscript | 1620-Krisjana-Barona-krajums-03-0031 | lv, de, fr | | Yes | No | |
| LFK | 2nd scientific expedition in Tukums district | 1835 | Manuscript | 1835-zinatniska-ekspedicija-Tukuma-04-0063 | lv, fr | | Yes | No | |
| LFK | Collection of Ventspils State Secondary School | 428 | Manuscript | 428-Ventspils-Valsts-vidusskola-0009 | lv, ru, fr | | No | No | |
| LFK | Collection of Memory Albums | 2121 | Manuscript | 2121-Atminu-albumi-61-0011 | lv, fr | | Yes | No | |
| LFK | Anecdotes collected by Juris Urtāns | 2125 | Manuscript | 2125-Jura-Urtana-anekdosu-krajums-01-1013 | lv, fr | | Yes | No | |
| LFK Bdz | Collection of children songs | 1 | Manuscript | 0001-Bernu-dziesmu-kolekcija-03-1182 | lv, fr, de, ru | | No | No | |