[4] Fellowes was left money in the will of his father-in-law, who died in 1718, with a requirement it should be spent on property in Devon.

[6] In the early 1720s Fellowes bought Shotesham Park in Norfolk, for his third son, William.

[9][10] His brother Sir John Fellowes, 1st Baronet, mentioned in his will, died later that year, on 26 July, without issue.

He had spent time on Nevis, and acted as London agent for the Leeward Islands planters.

[17][18] In 1703 Martyn, Fellowes and Thomas Andrews, another son-in-law to Martyn, acted as executors to Martin Madan, slave-owner on Nevis, and father of Martin Madan the future Member of Parliament.