“ I never considered it particularly important since you joined the discussion relatively recently”
We had this same debate a couple of years ago. You’ve never given specifics.
I remember you chiming in for a little while, and then you bowed out. I've been arguing this topic since before you came along the first time around, and yes, at one point the topic of who were the robber barons of the 1860s came up and it was discussed at some small length. Most of them are not particularly famous and so there is no real incentive to remember who they were.
Just look up "Robber Barons" of the "Gilded Age" and you can get some pretty good ideas as to who was calling the shots in the later half of the 1800s.