JF Ptak Science Books Post 1911
โNothing is falser than people's preconceptions and ready-made opinions; nothing is sillier than their sham morality...โ
(atribued to)
Petronius,
The Satyricon
(Image source, Gerry Badger blog, who also has some interesting things to say about the work as momento mori
.)
The road in determining who was the first person to what discovery is sometime a bit rocky--so with the invention of the computer (ask Mr. Atanatsoff), and the telephone (ditto Mr. Gray) and the television (and so to with Dr. Korn). This is also the case with photography, the rights for the discovery of the process contested in the first year following the announcement of the process.
The response to rejected claims for priority in discovery are almost (?) never recorded visually, but in he case of photography the rejected party did make a visual response, which I think was a prosimentrum of sorts, a photographic novella, and the appearance of the first use of satire in photography.
Louis Daguerre's epochal publication in the Comptes Rendus in 1839 would bring about the general recognition of the birth of photography--his process was described in that article and was immediately set to use by hundreds of adventurers people even in the first few weeks after publication. IT may well be that there are legitimate claimants working on the "photogenic" science before this time but it is Mr. Daguerre who published his findings first.
Among the many "firsts" in the first year of photography (reckoned as PD or post Daguerre

[Source here.]
Generally though the first photographic portrait has been recognized as being the work of Robert Cornelius, who was among the earliest practioners of the new science of the Daguerreotype. This is his work, dated 1839, made in his father's gas light importing business on Chestnut Street, Philadelphia:

(Both subjects have interesting hair issues.)
is is fine and remarkable, though the images simply record the bodies of the humans that are pictured. The first human portrait with an edge, with a political or social axe too grind and point to make, an image bent on a decisive end, belongs to a man who mildly and then hotly contested Daguerere's claim to the birth of photography--Hippolyte Bayard.
Bayard (1807-1887) experimented in the photographic science before the publication of Daguerre's paper and had shared some of his successes at this early date with members of the French Academy of Sciences (the publishers of the esteemed Comptes Rendus, the vehicle for Daguerre's paper). He was even in communication with Francois Arago, who as it turns out was the champion of Daguerre, and who introduced the paper to the world. After the appearance of Daguerre's paper Bayard--no doubt somewhat envious of the attention and money/funding that Daguerre was receiving) petitioned for help from Arago to establish his own claim and a chance for the experimenter's lament (funding). He was told in no uncertain terms by Arago to cease the attention, as it would hurt the chances of Daguerre to establish his priority and have the honor of the invention of photography to stay in France. It is a longer story than this, obviously, but suffice to say, Bayard's interests were mostly ignored, his priority claims relinquished. (He was later able to collect a few thousand francs for his scientific work, but the larger prizes eluded him.
And so in 1840, full of his own defeat and thoroughly impressed by Daguerre's success, Bayard composed the (above) portrait of himself as a drowned and dead man. On the reverse he wote:
"The corpse which you see here is that of M. Bayard, inventor of the
process that has just been shown to you. As far as I know this
indefatigable experimenter has been occupied for about three years with
his discovery. The Government which has been only too generous to
Monsieur Daguerre, has said it can do nothing for Monsieur Bayard, and
the poor wretch has drowned himself. Oh the vagaries of human life....!
... He has been at the morgue for several days, and no-one has
recognized or claimed him. Ladies and gentlemen, you'd better pass along
for fear of offending your sense of smell, for as you can observe, the
face and hands of the gentleman are beginning to decay." (From Helmut Gernsheim, A Concise History of Photography, with Alison Gernsheim, London: Thames & Hudson, 1965)
It seems that the use of satire in photography was not common in the first few decades following 1839, which makes Bayard's first use of he genre in 1840 even more remarkable. Satire in general has been aroudn for thousands of years, mostly in the form of drama and literature, and then in (Western, at least) painting in the Renaissance), right up through the Brueghels and Hogarth and Chaplin's Great Dictator and Dr. Strangelove. But it seems to me that the first photographic use of the genre came with the overtaken Bayard, who at least deserves this honor of "firstness".
Note:
I just wanted to remark on the hands and head of Bayard in his self-portrait--I believe that the man is just sunburned. It si common to see in 19th century photographs of working people that--when their hat is removed and so on--we see a big sun/tan line ont heir forehead. This is particularly the case in the work of Solomon Butcher, who recorded the lives of families on the SOdbuster Fronter in the 1880's and 1890's in Nebraska.

(Source, Nebraska State Historical Society.)