The archive contains a selection of letters and notes written by Republican Prisoners imprisoned in Limerick Jail and the Curragh Internment camp between 1922 and 1923 during and following the Civil War. They comprise in the main thank you-notes for parcels delivered to or sent to them by Annie McGowan, her daughter Sarah and her son Timothy.

The material contains primarily correspondence, petitions and resolutions created and generated by Thomas Spring Rice during his political career.