Well, if I remember things correctly, I submitted the game against Deacon last autumn and then I wrote the brief biography (most probably with language support by <OhioChessFan> and <jessicafischerqueen>). So, I feel some responsibility for this guy.

I collected a lot of material on Alexandre, but very few games of him have survived. Maybe a dozen or a little bit more. A few of them were played at odds, and even one early example of a kind of Chess960 game is known (see C.N. 7398 at http://www.chesshistory.com/winter/...).

<WannaBe: match against Staunton> I don't know any game of this match. In http://www.vuse.vanderbilt.edu/~spi... a brief description can be found: <1838: ... Staunton mortifying defeat by Alexandre, Oxford companion see ILN Jan 19, 1856 21 game match mortifying defeat was in early sittings>. It would be very interesting to know what Staunton exactly wrote in his column in the ILN; I have only access to his replies to correspondents of this volume (#28), and there I haven't found the match.

Murray wrote in the November and December issues of BCM 1908 several pages on Staunton, but didn't mention the match.

<(To the Editor of the ILLUSTRATED LONDON NEWS.)

SIR, — Will you allow me, through the medium of your Chess column, to correct a mistake into which I have fallen with respect to one of Mr. Staunton’s matches?

At page 155 of the "Chess-players' Annual,” in reporting from recollection a conversation with Mr. Staunton, I make him say that on his first arrival in London he was invited by Mr. Lewis to play a match with M. Alexandre —- that the match was played —- and that Mr. Staunton won every game.

I am informed by Mr. Staunton that this statement is incorrect, and that the true version is as follows:— “About the year 1838 Mr. Staunton joined the Old Westminster Club, and one of the frequenters of that Club (not Mr. Lewis) asked Mr. S. to engage in a match with Alexandre. Being a young player, Mr. Staunton felt flattered by the proposal, and a contest was soon arranged. It consisted of twenty-one games; but these were so far from being uniformly won by Mr. Staunton, that he confesses to a distinct remembrance of the mortifying defeat he experienced during all the earlier sittings of the match.

I remain, Sir, yours faithfully, CHARLES TOMLINSON.

If correct, why would anyone willingly move to Paris during the <Reign of Terror>?

<Aaron Alexandre, a Bavarian trained as a rabbi, arrived in France in 1793.[1] Encouraged by the French Republic's policy of religious toleration, he became a French citizen.>

https://en.wikipedia.org/wiki/Aaron...

Gaige (1987) specifies 1766. John Townsend, in <Historical notes on some chess players> (Wokingham, 2014) has found an official source that recorded his naturalisation:

<According to the <Bulletin des lois de la Republique Francaise>, he had been born at Hohenfeld, Bavaria, 17 November 1773, and was naturalised, July 1833, in Paris where he lived [...]>. (Bulletin des lois de la Republique Francaise, Volume 7, 1835, p.556)