Middlesex South was a federal electoral district that was represented in the Canadian House of Commons from 1883 to 1904. It was located in the province of Ontario. This riding was created from parts of Middlesex East and Middlesex West ridings.
It consisted of the townships of Westminster, Delaware, Caradoc and Lobo.
The electoral district was abolished in 1903 when it was redistributed between Middlesex North, Middlesex East and Middlesex West ridings.
Middlesex South Wikipedia
On Mr. Armstrong's death, 26 January 1893: