Question: What company was established as part of the Great Norther Railway Act of 1846 and has a first station west of Louth?
Sentence (from "Hallington railway station"): The Great Northern Railway planned and built a branch line from Bardney to Louth in stages, the final stage between Donington on Bain and Louth opening to goods on 28 June 1876 and passengers on 1 December 1876.
Relevant evidence: No