- ZbirkaDX19 - Cotton Family Papers
- SerijaC - Francis Cotton : Family and general correspondence, personal papers : 66 to 133
- Family Correspondence
- Dokument68 - Francis and Anna Maria Cotton
- 1 - Letter Francis to Anna Maria Cotton, 7 Dec 1867
- 2 - Letter Francis to Anna Maria Cotton, 25th Dec 1867
- 3 - Letter Francis to Anna Maria Cotton, 31st Dec 1867
- 4 - Letter Francis to Anna Maria Cotton 1st Jan 1868
- 5 - Letter Francis to Anna Maria Cotton 13th Jan 1868
- 6 more...