Abraham Mocatta formerly de Mattos Mocatta

Abraham de Mattos Mocatta appears as one of more than a dozen London merchants in the recitation of a deed of 08/06/1771 whereby William Byam of St Vincent sold annuities totalling £1010 p.a. secured on his estate and named enslaved people in St George on St Vincent in exchange for £10,040. The schedule specifying the annuitants referred to in the deed is missing, but the narrative suggests that Abraham de Mattos Mocatta and others (including his partner Alexander Isaks Keyser) grouped together in the third part of the deed were the purchasers of the annuities. Abraham Mocatta' long will, made in 1800 as broker of Goodman Fields and proved 17/02/1800, makes no specific reference to an annuity secured in St Vincent, but deals generically with his interests in the tontine and other annuities on his life and the lives of his children.

EAP 668 Deed Book 1785, British Library, EAP688/1/1/1, https://eap.bl.uk/archive-file/EAP688-1-1-1 pp. 371-389. The deed of 1785 deals with the efforts of the trustees Harry and Isaac Thompson to better secure the annuities by increasing their control of the estate; PROB 11/1337/205. He had changed his name in 1790 to discontinue the use of Lumbrozo de Mattos and use Mocatta only, London 13255 Gazette 9 November 1790 p. 682.