As a young man Bowlby spent some time in Italy, and in 1752 was buying Italian paintings for Lord Northumberland.
On 4 September 1780 North wrote to Christopher D’Oyly, commissary general of musters, who meant to retire from Parliament:
Mr. Bowlby is resolved to undertake a parliamentary life, and will be recommended by the Duke of Northumberland to one of his boroughs in the West. As you are changing your political situation, I do not see why you should not change places at the same time. The place he now fills is not tenable with a seat in the House of Commons, your place ought always to be held by a Member of Parliament.
The change of places was gazetted on the 6th, and a few days later Bowlby was returned on Northumberland’s interest at Launceston. In Parliament he naturally supported Administration. His one reported speech in the House was in a debate on army accounts, 31 May 1781. In April 1782 North, in his observations on John Robinson’s list of pensions, noted that Bowlby, ‘who will be very grateful for the continuance in Lady Mary’s name, does not wish to be continued in the list in his own name’;
He died in October 1795.
