Buller merited only a token bequest from his father’s estate in 1793, presumably because he had employment in the East India Company’s civil service.
At the general election of 1826 Buller was returned for West Looe on the interest of his brother John. He divided with Canning’s ministry against the disfranchisement of Penryn, 28 May 1827. He was probably the ‘R. Buller’ who voted against repeal of the Test Acts, 26 Feb., and the ‘Mr. Buller’ who deprecated an attack on opponents of the measure for seeking to delay it, 28 Feb. 1828. Yet he voted for Catholic relief, 12 May. He divided with the duke of Wellington ministry’s against inquiry into delays in chancery, 24 Apr., and presented an anti-slavery petition from his constituents, 16 June 1828. That summer his son jocularly assured Carlyle that he had ‘not quite arrived at the degree of Toryism and baseness which would make a man support ... Wellington’s government’.
In June 1832, while canvassing Liskeard with his son, Buller encountered William Makepeace Thackeray, with whose father he had served in India, and who thought him ‘a dear old fellow, the most amiable and good natured I ever saw’. His wife subsequently presided over the radical salon centred on their son, though an account of one party casts doubt over her efficiency as a hostess. Harriet Martineau, who was hard of hearing, found herself seated next to Buller:
He being so excessively deaf ... no trumpet was of much use to him. There we sat with our trumpets, an empty chair on the one hand, and on the other, Mr. J.S. Mill, whose singularly feeble voice cut us off from conversation in that direction.
Thackeray Letters ed. G.N. Ray, i. 219; Martineau Autobiog. (1877), ii. 129-30.
Buller died in May 1848 and left the bulk of his real and personal estate to his wife, to be divided on her death between their sons. He instructed that an annuity of £100 be given to one Theresa Reviss, who was granted further provision from the sale of land and houses in Calcutta.
