Primary sources catalogue
| Document Title | Archive |
|---|---|
| From Lilia to her dear grandmother, Countess G. Mastai Ferretti c/o Augusto Ferre, Fano (Marche) | Paolo Cresci Foundation |
| Letters from Thorunn Vigfússon | Árnessýsla Regional Archives |
| Margrét Vigfúsdóttir letters | Árnessýsla Regional Archives |