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National Library of Ireland: Maps and Surveys of the Knockdrin Estate, Westmeath
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National Library of Ireland: Knockdrin Estate Index Map
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National Library of Ireland: Clonkill at Knockdrin Demesne
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National Library of Ireland: Tenant List for Clonkill, Knockdrin Demesne
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National Library of Ireland: Map of Knockdrin and Brittass
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National Library of Ireland: Map of Knockdrin and Corrabrack
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National Library of Ireland: Map of Knockdrin and Dunmore
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National Library of Ireland: Map of Knockdrin Quarry
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National Library of Ireland: Map of Knockdrin and High Park
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National Library of Ireland: Map of Robinstown at Knockdrin Estate
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National Library of Ireland: Reference to Robinstown: Acres, Roods & Perches