- Gy?jteményDX19 - Cotton Family Papers
- SorozatF - Edward Octavius Cotton and Elizabeth (Grueber) : 184 to 218
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- Iratdarab200 - Letters from S.H. Grueber and his wife to daughter Helen
- Iratdarab201 - Mary Spencer (nee Grueber) to sister Helen
- Iratdarab202 - Letters from Hannah Grueber (nee Fletcher wife of S. H. Grueber jr.)to Helen
- Iratdarab203 to 213 - Letters from friends to Helen Grueber
- Iratdarab214 - Helen Grueber (Mrs E.0. Cotton) - poetry
- Iratdarab215 - Drawing exercise books Helen Grueber
- Iratdarab216 - School exercise book - E.H. Grueber
- Iratdarab217 - Helen Grueber - Miscellaneous
- Iratdarab218 - Stephen Henry Grueber (father of Helen) - family history