Sir Edmund Buckley, 1st Baronet
Buckley was born as Edmund Peck, the illegitimate son of Edmund Buckley of Ardwick in Manchester. He assumed the name of Buckley by Royal Licence in 1864 and inherited considerable estates in Lancashire and Wales including the estate at Dinas Mawddwy. He became involved in slate quarrying at the Hendre Ddu Slate and Slab Co. for which was built the Hendre-Ddu Tramway. He was a Deputy Lieutenant and J.P. for Merionethshire.
At the 1865 general election Buckley was elected Member of Parliament for Newcastle-under-Lyme, the same seat his father had previously held. He was created a baronet on 11 December 1868. At the 1868 general election he was re-elected for Newcastle-under-Lyme and held the seat until 1878, when he resigned from the Commons by taking the Chiltern Hundreds. In 1872 he built a lavish Victorian gothic mansion at Dinas Mawddwy called "Y Plas". In 1873 he built a hotel, reputedly the oldest reinforced concrete building in Europe, which was called the Buckley Arms hotel.
A slump in the slate industry together with the failure of some of his other businesses led to his financial collapse in 1876, and he had to declare bankruptcy. Despite having inherited a vast fortune, he had so over-invested both at Dinas Mawddwy and elsewhere that the entire inheritance was gone; indeed Buckley was £500,000 (equivalent to £47,380,411 in 2019) in debt, an almost unbelievable amount in the 1870s. Buckley had to sell off most of his estates to pay his debts. One asset he did retain was the Mawddwy Railway – but with no capital to spend on it.
Buckley died at the age of 75.
Buckley married Sarah Rees, daughter of William Rees of Tonn near Llandovery, Wales in 1860. Sarah died in 1883 and Buckley married her cousin Sarah Mysie Burton (née Jenkins), daughter of Evan Jenkins, Rector of Loughor in 1885  His son by his first marriage, also called Edmund Buckley, born in 1861, inherited the Baronetcy on his father's death.
- Diaries of William Rees of Tonn, Llandovery. Cardiff City Library
- Debretts House of Commons and the Judicial Bench 1870
- "No. 23447". The London Gazette. 4 December 1868. p. 6459.
- Leigh Rayment's Historical List of MPs – Constituencies beginning with "N" (part 1)
- Department of Information Services (14 January 2010). "Appointments to the Chiltern Hundreds and Manor of Northstead Stewardships since 1850" (PDF). House of Commons Library. Retrieved 14 January 2011.
- Parks and Gardens UK -Plas Dinas Mawddwy
- The Buckley Arms Archived 14 March 2012 at the Wayback Machine
- "Failure of Sir Edmund Buckley, Bart, M.P.". Cambrian News. 26 May 1876.
- Hansard 1803–2005: contributions in Parliament by Edmund Buckley