I started railway modelling in the early 1960s, so the layouts that stick in my mind are from that era but, that said, I don't know if I'm really trying to emulate them. They are P D Hancock's Craig and Mertonford and Dave Howsam's original version of Porthleven. Another one that I dismissed at the time but now find fascinating (although with its emphasis on timetable operation, it is not the sort of layout I am aiming at) is the Sherwood Section of the LMS.