The District was formed by an Act of the
Parliament of Upper Canada in 1798, and was described as consisting of The townships and counties were thus organized: The district town was Charlotteville (later named
Turkey Point), but moved to Tisdale's Mills (later named
Vittoria) in 1815. In 1826, the district town was moved to
London, and the townships of
Rainham and
Walpole were moved to
Haldimand County in
Niagara District because of their distance from London. The
Huron Tract, being developed at the time by the
Canada Company, was divided between the London and
Western Districts in 1835, with the greater part of the territory in the London District forming the new
Huron County. That County was later withdrawn in October 1841 to form the new
Huron District. In 1837, Oxford County was separated into the new
Brock District, and Norfolk County was separated to form
Talbot District. In 1840, the following lands were withdrawn from London District and attached to
Waterloo County in
Wellington District: :* reserved lands west of Woolwich and Nichol :* the triangular piece of land adjoining the said tract in the proposed District of Huron :* part of the late purchase from the Indians of Gore, and part of Indian lands In 1845, the District was restricted in area to cover Middlesex County only. thus detaching the remainder of its northern part extending to Lake Huron. This was rectified by the territory's attachment to Huron District in 1846. At the beginning of 1850, the district was abolished, being replaced by the
United Counties of Middlesex and Elgin and in 1850 as standalone Middlesex County for municipal purposes. ==Further reading==