Without a label it would be quite difficult to definitively state which possible manufacturer from Chicago made your dining set. Here is a link that outlines some makers and several from Chicago, perhaps this may help jog your memory if you see a name that you may recognize: http://artsandcraftscollector.com/shopmarks/furniture
Yes, the style is referred to as "Jacobean Revival" sometimes also called "Renaissance Revival" or "Tudor Revival". The design element of the table legs is called 'cup and cover'. Only a photo of the chair and part of the table are showing here on my end; not the buffet.
Please take a moment to leave a rating by clicking the stars. If you require further assistance, no worries, the question thread does not close even after leaving a rating.
Just checking in to see if you viewed your answer and if you are seeking further assistance?
Please let me know.