He with William Mitchell kept out Charles Clarke, backed by Robert Montagu, 3rd Duke of Manchester.
[11] In this time of the decline of Sir Robert Walpole's ascendency, he was classed as an Opposition Whig.
[1][11] When John Jones published his 1749 book in liturgical reform in the Church of England, Fellowes was in the select group of political figures he thought might take an interest, with Lord Lonsdale, Arthur Onslow, and James West.
[12] A character sketch by Jones of Fellowes was published by John Nichols in his Literary Anecdotes.
[13] In 1754 Fellowes was re-elected, with John Proby of Elton Hall, the Montagu backers keeping out with the next generation not yet being of age.
[14] Sandwich floated the idea of Proby standing with William Montagu, his brother, but it was dropped when Fellowes demurred.
[16] Dorothea who died in 1817 was confined from 1791 for the rest of her life in a private asylum, Fisher House in Islington under Samuel Foart Simmons, by a family group of her brothers, her sister Urania and Robert Fellowes.
[23] In 1720 Fellowes acted as executor of a will of an unmarried cousin, Elizabeth Pett of Carshalton, who had died that year.