William Jeffcock was the first Mayor of Sheffield

Lord Mayor of Sheffield

The Lord Mayor of Sheffield is a ceremonial post held by a member of Sheffield City Council. They are elected annually by the council. The post originated in 1843, with the appointment of William Jeffcock as the first Mayor of Sheffield...

.

Jeffcock was born in April 1800 in Handsworth, South Yorkshire

Handsworth, South Yorkshire

Handsworth is a suburb of south eastern Sheffield, in South Yorkshire, England. Handsworth has a population of approximately 15,000. It covers an overall area of approximately...

, the son of John Jeffcock, a colliery owner (1763 – 1814). On 2 January 1827 he married Judith Stobart. They had at least two sons William Henry and (unknown) and a daughter, Mary.

He was elected Mayor of Sheffield

Sheffield

Sheffield is a city and metropolitan borough of South Yorkshire, England. Its name derives from the River Sheaf, which runs through the city. Historically a part of the West Riding of Yorkshire, and with some of its southern suburbs annexed from Derbyshire, the city has grown from its largely...

 on 9 April 1843.

In 1846 he was made a Justice of the Peace

Justice of the Peace

A justice of the peace is a puisne judicial officer elected or appointed by means of a commission to keep the peace. Depending on the jurisdiction, they might dispense summary justice or merely deal with local administrative applications in common law jurisdictions...

.

In 1850, on the family estate, he commissioned a mansion house High Hazels

High Hazels Park

High Hazels Park is a large parkland area in Darnall, Sheffield, South Yorkshire, England. Since the 19th century Darnall has been a centre of coal and steel industry in Sheffield. High Hazels Park was built in 1850 by William Jeffcock...

to be built "regardless of cost".

He died in 1871.