Moore, whose personal details are largely unknown, came from a Devon family of clergymen. His grandfather was probably one of the Francis Moores of South Tawton whose wills were proved in Exeter in 1739 and 1750.
Moore seems to have entered the service of the 1st Earl Grosvenor in the mid-1790s. He was responsible for agricultural and mining concerns on Grosvenor’s Cheshire and Flintshire estates, and according to his account books, which were begun in July 1796, he then received a salary of £200.
Moore, who was expected to follow his patron’s Whig line in the Commons, divided with opposition on the civil list, 5, 8, 15 May 1820. Urging the committal of the Grampound disfranchisement bill, 19 May, he commented that whether it was extended into the neighbouring hundreds or had its seats transferred to Leeds ‘the principle of parliamentary reform was equally recognized’. He divided against the appointment of a secret committee on the allegations against Queen Caroline, 26 June, and on 5 July 1820 was granted leave to go the circuit. He voted steadily in the opposition campaign on behalf of the queen at the start of the following session; on 20 Feb. 1821, in his only other known speech, he called for inquiry into the conduct of the sheriff of Cheshire. He divided for Catholic relief, 28 Feb., and was expected to be back from the circuit (for which he had again been given leave, 14 Mar.) to vote against Henry Bankes’s motion to exclude Catholics from Parliament on 26 Mar.
At the beginning of August 1821 Moore fled to America having, as Grosvenor put it, ‘turned one of the greatest scoundrels in existence’ by leaving his patron in debt for the ‘frightful amount’ of about £80,000.
I hardly know what I wrote to you [two days earlier], I have had such a multiplicity of communication and conflicting considerations on this horrid business. I see in the account just prepared and actually sent in to me this very moment ... he made himself my debtor only to the amount of about £1,600 when it should have been above £100,000. I may add indeed considerably to this from former defraudings but at the time of his absconding where he did soon after the discovery he left me to pay the above to lead merchants, besides forfeiture to the amount of £20,000 more. The latter only I have some hopes of reducing. The fraud (or felony on his part) was most injurious, as much as infamous - he got the money by absolutely selling lead which I did not possess ... One of the dealing partners is strongly suspected of connivance, but only suspected as yet - his clerk and he had took a place in a coach for Devonshire.
Moore’s accounts for 1821, when his salary had risen to £500, did indeed record a figure for cash in hand of less than £2,000, so he had evidently concealed the embezzlement in the yearly balances of several tens of thousands of pounds. Grosvenor, who noted that ‘everybody is equally astonished at Moore’s delinquency’, concluded his letter to Hailstone by writing that ‘the origin of his malpractices was in unsuccessful speculation in mines and I really believe of all the money he has got he has not a great deal left!’
He died of yellow fever in New York, some time in September or October 1822. His wife, whose identity has not been established, also succumbed during the epidemic, and left ‘six sons, helpless orphans; the eldest of whom is an idiot, and the next a youth of about 17 years of age’.
In speaking of Abraham Moore and his irregular life [Henry Alworth] Merewether said that it was a frequent saying of Moore’s that he was sure he should ‘die in a ditch’ - and so he actually did, somewhere in America.Moore Jnl. v. 1921.
