Tomorrow night (Tuesday 11/28), the topic of Guilford will be brought up at the Ayer Board of Selectmen's meeting at Town Hall. Though the meeting will run from 7-9 PM, its agenda schedules the topic, along with other items, under the "Report of the Town Administrator" from 8:30 to 8:45.
I'm sure that lots of folks will be in attendance.
The Ayer Public Spirit, published every Friday and also online, is a good source of information.
It seems that the railroad is also still Guilford to the Town of Ayer.