- SammlungDX19 - Cotton Family Papers
- SerieF - Edward Octavius Cotton and Elizabeth (Grueber) : 184 to 218
- 8 mehr...
- Objekt201 - Mary Spencer (nee Grueber) to sister Helen
- Objekt202 - Letters from Hannah Grueber (nee Fletcher wife of S. H. Grueber jr.)to Helen
- Objekt203 to 213 - Letters from friends to Helen Grueber
- Objekt214 - Helen Grueber (Mrs E.0. Cotton) - poetry
- Objekt215 - Drawing exercise books Helen Grueber
- Objekt216 - School exercise book - E.H. Grueber
- Objekt217 - Helen Grueber - Miscellaneous
- Objekt218 - Stephen Henry Grueber (father of Helen) - family history