John William Ruxton was an Irish landowner and Member of Parliament.

The son of William Ruxton

William Ruxton (1697–1751)

William Ruxton was an Irish landowner and MP from Ardee in County Louth.He sat in the Irish House of Commons as Member for Ardee from 1748 to his death; the other representative of the borough was Robert Parkinson....

 of Ardee

Ardee

Ardee is a town and townland in County Louth, Ireland. It is located at the intersection of the N2, N52, and N33 roads. Ardee is on the banks of the River Dee and is approximately 20 km from Dundalk, Drogheda, Slane and Carrickmacross...

 in County Louth

County Louth

County Louth is a county of Ireland. It is part of the Border Region and is also located in the province of Leinster. It is named after the town of Louth. Louth County Council is the local authority for the county...

, he married Laetitia Fitzherbert, eventual heiress of Shercock

Shercock

Shercock is a small town situated in the east of County Cavan, Ireland. The current population of the town is 1032 people with almost triple this amount in the surrounding areas....

 in County Cavan

County Cavan

County Cavan is a county in Ireland. It is part of the Border Region and is also located in the province of Ulster. It is named after the town of Cavan. Cavan County Council is the local authority for the county...

 and Blackcastle in County Meath

County Meath

County Meath is a county in Ireland. It is part of the Mid-East Region and is also located in the province of Leinster. It is named after the ancient Kingdom of Mide . Meath County Council is the local authority for the county...

.

He was elected to succeed his father as MP for Ardee

Ardee (Parliament of Ireland constituency)

Ardee was a constituency represented in the Irish House of Commons from 1378 to 1801.-History:Ardee in County Louth was enfranchised as a borough constituency in 1378...

 in 1751, and sat until 1776. He was then re-elected in October 1783 (along with his younger brother, Charles Ruxton

Charles Ruxton

Charles Ruxton was an Irish MP and landowner in Ardee, County Louth.A younger son of William Ruxton, he and his elder brother John Ruxton represented Ardee in the Irish House of Commons....

) and sat until his death.

Ardee and Shercock were inherited by the eldest son, William, while Blackcastle was inherited by a younger son John. This son married Margaret Edgeworth, aunt of the novelist Maria Edgeworth

Maria Edgeworth

Maria Edgeworth was a prolific Anglo-Irish writer of adults' and children's literature. She was one of the first realist writers in children's literature and was a significant figure in the evolution of the novel in Europe...

.