[1] Born at Baynton House in East Coulston, Wiltshire, he was the second son of Walter Long and his first wife Mary Anne, daughter of Archibald Colquhoun.
Due to his increasing anxiety over the state of his finances, he was considering the possibility his family would be forced to live cheaply on the Continent to save sufficient money to service the outstanding debts on the Montgomeryshire estates.
Long was under pressure from his stepmother, the former Lady Mary Bisshopp, who believed she had not been adequately provided for under the terms of her late husband's will.
He wrote to her expressing regret that he was unable to help her financially, due to the many demands made by delayed improvements to the estate and Rood Ashton House, and advised that she should curb her extravagant lifestyle.
[4] Charlotte enjoyed a lavish lifestyle, often travelling to Cannes, France, her favourite watering place, and always in style, with a private coupe on the train, eating off her own silver and eggshell china, and surrounded by a suite of couriers, valets de chambre and maids.
One day when Charlotte was travelling in her usual style to the South of France, someone spotted her and mistakenly believed that the Empress was aboard the train.
After his death, Charlotte moved to Dolforgan Court in Exmouth, Devon, and became known locally as "Lady Bountiful" for her charitable works and her role in founding a hospital.
[11] On 4 October 1853, Long had married Charlotte Anna, fourth and only surviving daughter of the politician William Wentworth Fitzwilliam Hume of Humewood in the Irish County Wicklow, in St George's, Hanover Square in London.
Another daughter named Frances Laura Arabella (1864–1932) was first the wife of the explorer Harry Willes de Windt, and secondly of the engineer Anthony George Lyster.