Blah, blah, blah... Once upon a time, it also meant that the "peers" were individuals of similar profession and socio-economic demographic. We've lost that over time, and the Constitution was only written to guarantee an impartial jury. There is no guarantee of a jury of your [TRUE] peers. It's been lost... This is one of the many reasons I hope to God that I'm never charged with a crime, especially a crime that I didn't commit.
Well, in 1975 the Supreme Court interpreted the meaning of the constitutional guarantee of trial by an impartial jury required that the jury pool be a mirror image or microcosm of the eligible community population. Thus, they've determined that the Constitution indicates that we should attempt to obtain a cross-sectional ideal.
Now, whether their interpretation of the Constitution is right or wrong, that's up for debate. However, all I was pointing out is that by "peer," they don't mean someone similarly situated to you as far as socioeconomic standing, profession, etc.; they simply mean eligible citizens within your local community.
Prior to the 1968 Jury Selection and Service Act which instituted the cross-sectional ideal, jury commissioners typically solicited the names of "men of recognized intelligence and probity" from notables or "key men" of the community. The theory was that they needed jurors of above average intelligence. This obviously caused a variety of problems, which is why it was abandoned for the cross-sectional ideal. So prior to the cross-sectional ideal, they still weren't picking jurors based upon the fact that they shared similar professions and socioeconomic demographics with the defendant.
In the 1700s and 1800s? I don't know, they may have had a jury of woodsmen to judge woodsmen. But it certainly hasn't been done in a long time. But I don't know that this would necessarily lead to an impartial jury as the Constitution requires, which is probably why it was abandoned. If the trial was intricately tied to your profession, then those who work in your profession may sympathize with you and grant you a remedy or result that the law doesn't actually afford you.