From Lewis Carroll's and Henry Holiday's The Hunting of the Snark (1876):
021 There was one who was famed for the number of things
022 He forgot when he entered the ship:
023 His umbrella, his watch, all his jewels and rings,
024 And the clothes he had bought for the trip.
025 He had forty-two boxes, all carefully packed,
026 With his name painted clearly on each:
027 But, since he omitted to mention the fact,
028 They were all left behind on the beach.
029 The loss of his clothes hardly mattered, because
030 He had seven coats on when he came,
031 With three pairs of boots--but the worst of it was,
032 He had wholly forgotten his name.
033 He would answer to "Hi!" or to any loud cry,
034 Such as "Fry me!" or "Fritter my wig!"
035 To "What-you-may-call-um!" or "What-was-his-name!"
036 But especially "Thing-um-a-jig!"
037 While, for those who preferred a more forcible word,
038 He had different names from these:
039 His intimate friends called him "Candle-ends,"
040 And his enemies "Toasted-cheese."
041 "His form is ungainly--his intellect small--"
042 (So the Bellman would often remark)
043 "But his courage is perfect! And that, after all,
044 Is the thing that one needs with a Snark."
045 He would joke with hyenas, returning their stare
046 With an impudent wag of the head:
047 And he once went a walk, paw-in-paw, with a bear,
048 "Just to keep up its spirits," he said.
049 He came as a Baker: but owned, when too late--
050 And it drove the poor Bellman half-mad--
051 He could only bake Bridecake -- for which, I may state,
052 No materials were to be had.
My assumption is, that in Carroll's ballad the Baker does not stand for a single person. Rather, he represents curageous (and - once the intellect is small but the courage is perfect - often uncautious) searchers of truth. Put more simply: The baker represents an attitude (or a set of attitudes), e.g. the attitudes of a Corbinian or a Thomas Cranmer, a key figure in the history of the reformation in Europe.
In Carroll's description of the Baker (see parts printed in boldface), there may be some allusions to someone who got burned. As for "Bridecake", Thomas Cranmer also was (along with Thomas Cromwell) quite a bit involved in the weddings (and divorces) of Henry VIII. (No materials = No brides on board of the vessel of the Snark hunting party.) The forty-two boxes carried the Baker's name as clearly, as the Anglican Forty-Two Articles are clearly associated with Thomas Cranmer. Here both, the Baker and Cranmer, stand for quite ambivalent heroes. Carroll (Rev. Dodgson) did not subscribe to the later Thirty-Nine Articles. Subscribing to these Articles was a requirement for ordination.