Michael Roberts was leasing Mount Rivers from the representatives of Daniel Morrison at the time of Griffith's Valuation, when it was valued at £45+. The sale rental of 1863 records Michael Hodder Joseph Roberts as the tenant of Mount Rivers. The house is still extent and the National Inventory of Architectural Heritage states that it is still owned by the Roberts family.
Mount Rivers (Carrigaline) (National Inventory of Architectural Heritage, www.buildingsofireland.ie)