Premise: John Ormsby Vandeleur (1765 – 28 November 1828) was an Irish barrister, landowner and politician from Kilrush in County Clare. He sat in the House of Commons of Ireland from 1790 to 1800, and then in the House of Commons of the United Kingdom from 1801 to 1802.
Hypothesis: John Vandeleur sat in the House of Commons of Ireland nine years longer than he did in the House of Commons of the United Kingdom.