Editing Springhill House (section)

===William Lenox-Conyngham, and the Lissan House connection===
From George, the house passed to his eldest son William Lenox-Conyngham in 1816. He had been a talented lawyer in Glasgow but left his legal career to run the estate. In 1818 he married Charlotte Staples, daughter of [[John Staples]] of [[Lissan House]] near Cookstown. John Staples was a respected lawyer and member of the [[Irish House of Commons]]. Staples first wife was Harriet Conolly of [[Castletown House]] in County Kildare. The descendants of their eldest daughter Louisa Anne inherited Castletown House after the death of [[Lady Louisa Conolly]] in 1821. His second wife was Henrietta Molesworth, daughter of Field Marshal [[Richard Molesworth, 3rd Viscount Molesworth]]. Their son Thomas Staples became the 9th [[Staples Baronets|Lissan Baronet]].

During William Lenox-Conyngham's tenure, the estate was drained and improved and a large well-appointed dining room was added to the rear of the house, complete with a 17th-century Italian chimneypiece salvaged from [[Frederick Hervey, 4th Earl of Bristol]]'s [[Ballyscullion House]] near [[Bellaghy]] which was demolished in about 1825.