Eleven letters from John Rice Lamb at Dundalk Gaol (Jail), Dundalk, County Louth, to his nephew William Lamb at 6 Coyngham Road, Phoenix Park, County Dublin, as well as the Government Prisons Office, Smithfield, County Dublin.

Draft of a letter from H Hitchins to Dublin Castle, regarding William Lamb's work at the Government Prisons Office.

Letter from J W Crowley in County Cork, to William Lamb at Smithfield Prison, County Dublin, inquiring about employment opportunities for his step-brother Robert Martin.

Letter from Emma Rawlins at Grange Gorman, County Dublin, to William Lamb at Smithfield Government Prison, Dublin, County Dublin, regarding the Australian address of Mrs Bainbridge.

Four letters from Sally Lamb in Dundalk, County Louth, to her brother William Lamb at 6 Coyngham Road, Phoenix Park, County Dublin.

Letter from William Pattison Kerr at Lakeview, Shantonagh, County Monaghan, to his son-in-law William Lamb at 1 Wilton Terrace, Grosvenor Road, Rathmines, County Dublin.

Letter from Thomas Gick at 2 Wilton Terrace, Grosvenor Road North, Rathmines, County Dublin, to his neighbour William Lamb at 1 Wilton Terraces, Grosvenor Road North, Rathmines, County Dublin, regarding the renovation of the sewage pipe system shared between their properties.

Letter from M A Weir in County Cork to William Lamb in County Dublin, regarding a clerical position for John Alexander Lamb.

Letter informing William Lamb of his appointment to the position of Secretary and Accountant of the Government Prisons Office at Dublin Castle.

Two letters from Mary Lamb in Dundalk, County Louth, to her brother William Lamb at 6 Coyngham Road, Phoenix Park, County Dublin.