- CollectionDX19 - Cotton Family Papers
- SeriesF - Edward Octavius Cotton and Elizabeth (Grueber) : 184 to 218
- 4 more...
- Item189 - Memoranda pocket book
- Item190 to 198 - Miscellaneous papers
- Item199 - Letters from Edward 0. Cotton to E. Helen Grueber
- Item200 - Letters from S.H. Grueber and his wife to daughter Helen
- Item201 - Mary Spencer (nee Grueber) to sister Helen
- Item202 - Letters from Hannah Grueber (nee Fletcher wife of S. H. Grueber jr.)to Helen
- Item203 to 213 - Letters from friends to Helen Grueber
- Item214 - Helen Grueber (Mrs E.0. Cotton) - poetry
- Item215 - Drawing exercise books Helen Grueber
- 3 more...