Recorder in the Burlington Free Press, published in Burlington, Vermont on August 13, 1841, Daguerreotype Miniatures taken by E. A. Allen, at the American Hotel, Burlington, Vt. Ladies and Gentlemen wishing to obtain beautiful and perfectly correct likenesses, are respectfully invited to call and examine his specimens and prices. He trusts that the novelty of the science, to say the least, will induce the curious to give him a call. The Miniatures can be made of various sizes suitable for a neat Morocco Case, Gilt Frame, Locket or Breast Pin.
N. B. Instruction will be given to a limited number of Pupils, if desired, and the Apparatus, Materials, &c. for the process furnished. Advertisement ran from August 13 to 27, 1841.
E. A. Allen does not appear in any other sources I have checked or have access to.