Various.

Jonathan Passingham, a farmer from Heston, died in 1833, leaving most of his estate at Heston in trust for his wife Elizabeth and, after her death, to be divided between his two daughters. Ellen, who married Jonathan Passingham of Cornwall in December 1833, was to receive Heston Farm estate (143a 29p), and Emma, wife of James Basire, engraver of Chancery Lane, was to receive North Hyde Farm estate (132a 2r 3p). After their deaths the property was to be divided between their respective heirs. The executors and trustees of the will were Francis Sherborn, gentleman of Bedfont, and Charles Farnell, brewer of Isleworth.

The inheritance became a cause in Chancery in 1836 when the heirs accused Francis Sherborn of "a series of frauds, misconduct, negligence and breaches of trust", and Charles Farnell of "gross negligence" in failing to take steps to prevent this. Farnell stated he had been "a mere cypher in the business", as Sherborn had been the active trustee (see ACC/0328/033). The main charge of the plaintiffs concerned the mismanagement of Heston and North Hyde Farms which, soon after the death of Jonathan Passingham, had been leased by the trustees to Francis Sherborn and his brother Matthew as tenants in common. The plaintiffs claimed that the terms of the lease, which was drawn up by Henry Farnell, brother of Charles, were fraudulent, and resulted in "acts of waste and destruction" by the Sherborns. These were specified as ploughing up valuable meadow and pasture land, denuding the estate of timber, and allowing buildings to fall into decay and, in some cases, pulling them down. A further charge related to the sale of a brickfield called Tentlows in which the trustees had a beneficial interest. The decree in Chancery in 1839 discharged Sherborn and Farnell from their trusteeship.

George Robert Rowe, M.D. of Chigwell, Essex, and Francis Passingham of Truro, Cornwall, were subsequently appointed new trustees, to be accountable for the estate to the Master of the Rolls. An Act of Parliament in 1844 (7 and 8 Vict. c.22) enabled the trustees to grant leases for digging brick earth on the estate. The royalties from brick making were to be paid into two accounts at the Bank of England, one for Heston Farm and one for North Hyde Farm, in the name of the Accountant General of the Court of Chancery. Another act in 1847 (see ACC/0328/058) authorised the construction of a canal link for transporting bricks. This, however, was not undertaken, a tramway being built instead.

The Depot Estate was land originally purchased by HM Ordnance in 1814 from several owners. Three small pieces of land, copyhold of the manor of Heston, were added to the estate in 1817. When it was sold in 1832, the estate comprised barracks, storehouses, dwelling houses, lands and a private canal. Most of the Depot Estate was purchased in 1845 by Messrs. Allen and Holmes, solicitors to the Passingham trustees, and conveyed to the trustees in 1848. James Basire, widower of Emma, the daughter of Jonathan Passingham, held the life interest in the rents and profits of North Hyde Farm and the Depot Estate. When he died in 1869 the Basire heirs brought a further cause in Chancery for the sale or partition of the North Hyde Estates, and in 1871-2 the property was sold in twenty one lots, primarily for building development, (see ACC/0328/105-106).