Born at Draycot Cerne in about 1598, Long belonged to one of the oldest and wealthiest families in Wiltshire, which had represented various borough constituencies in the Commons for several generations. A younger son under-age at his father’s death in 1610, Long inherited an annuity of only £20 - the principal family estates having been divided between his brother Walter and half-brother James - but he was also accorded a legal education at Lincoln’s Inn.
Long’s return for Devizes at a by-election on 17 Mar. 1626 was evidently arranged by Ley in order to fill a vacancy caused by the elevation of Ley’s son Henry to the Lords under a writ of acceleration; he left no mark upon the records of the session. Long may have been considered for the seat at the general election earlier that same year, as he had been made a freeman of the borough in January 1626.
Long remained at Court after Ley’s death in 1629, and by 1633 was styled servant to Charles I. In 1639 he was appointed receiver of recusancy fines south of the Trent and was granted the fee-farm rents of Galtres Forest, Yorkshire, where he acquired a residence.
In his will of 27 Mar. 1673, Long bequeathed most of his Yorkshire and Northamptonshire estate to his nephew Sir James Long†, upon whom his baronetcy also devolved. Other property in Dorset went to his niece Anne, while another nephew, Walter, was given a £100 annuity secured on the profits of his Lincolnshire manor of Legsby. His niece’s husband, Sir Richard Mason†, was granted the remainder of his lease on Worcester Park - the former Nonsuch Palace - as well as £300 ‘to be disposed and paid by him for the good of my soul’, an indication of Long’s conversion to Catholicism during his exile.
