Hayne inherited from his father a messuage in Scots Lane, Salisbury, along with other unspecified lands and tenements.
Nearer the beginning of his career, in 1441 Hayne started actions in the court of common pleas against William Temys* of Rood Ashton and Richard Casterton, a wealthy esquire from Lincolnshire, for assaulting him at Calne, but the cause of their quarrel is not revealed.
While up at Westminster Hayne came to the attention of the government, and shortly before the start of the third parliamentary session he was granted for life on 28 Sept. 1445 the office of clerk of the King’s works on the manor of Clarendon.
These elections were held on 13 Oct. 1450 when the region had yet to recover from the severe unrest caused by Cade’s rebellion and the murder of Salisbury’s bishop, William Aiscough. Justice had not yet been done to the satisfaction of the royal authorities, and Hayne’s own actions that summer came to be viewed with suspicion. When commissioners of oyer and terminer came to Salisbury in July 1451 he was indicted with another ‘esquire’, Edmund Langtoo, for having risen in ‘manner of war’ with ‘many other’ malefactors, and congregated at ‘Hermanneshill’ on 30 June 1450 plotted to kill diverse lieges of the King and steal their goods.
In the interim, Hayne had continued to attend civic assemblies at Salisbury, and on 2 Nov. 1453 he was elected to the superior council of 24, on the same day paying £4 to be excused the offices of alderman and reeve.
After the death of his former superior at Clarendon, Sir William Beauchamp, Lord St. Amand, Hayne registered grievances at the Exchequer regarding the handling of his accounts as clerk of the works. He said that St. Amand had ordered him to build a gatehouse at the manor and erect two new chimneys at the lodges and a bell tower in the chapel, as well as carrying out other ‘grete werkes’. Accordingly, he had hired many workmen, including masons and carpenters, agreeing to pay some of them 6d. a day, and others 5d. or 4d., but the Exchequer had only allowed him expenditure according to the statutes of Cambridge (which restricted wages to 2½d. a day for an artificer and 1d. for a labourer). As Hayne had found that labour could not be had in Wiltshire for such low wages, he had suffered ‘grete losse and importable hurt’. An order went to the Exchequer on 5 May 1458 to accept his accounts according to his oath, and allow him expenses on all his outgoings, the statutes notwithstanding. He duly presented his accounts, which revealed that he had spent more than £62 than he had received.
On 5 Nov. 1459 Hayne was elected for Salisbury to the Coventry Parliament, once more with William Hore as his companion.
Thereafter, Hayne took no further part in the administration of Salisbury. This may be because royal office took him elsewhere, at first (from July that year), to Poole, where he had been appointed collector of customs and subsidies. He left that post in March 1466 only to be then granted for life the constableship of Old Sarum castle, which had been in ruins for many years. Clearly, this was a sinecure.
Hayne is last recorded in October 1478, completing transactions regarding his landed holdings.
