' s ▁Oxford ▁to ▁B let ch ley ▁line ▁at ▁Ver ney ▁J unction . ▁On ▁ 1   Se ptember ▁ 1 8 9 4 , ▁London ' s ▁Metropolitan ▁Railway ▁( MR ) ▁reached ▁A yles bury , ▁and ▁shortly ▁afterwards ▁connected ▁to ▁the ▁A & BR ▁line , ▁with ▁local ▁MR ▁services ▁running ▁to ▁Ver ney ▁J unction ▁from ▁ 1 ▁April ▁ 1 8 9 4 . ▁Through ▁trains ▁from ▁the ▁MR ' s ▁London ▁termin us ▁at ▁Baker ▁Street ▁began ▁on ▁ 1   J anu ary ▁ 1 8 9 7 . ▁ ▁Richard ▁Plant agen et ▁Campbell ▁Temple - N ug ent - B ry d ges - Ch and os - G ren ville , ▁ 3 rd ▁Duke ▁of ▁Buck ingham ▁and ▁Ch and os , ▁had ▁long ▁had ▁an ▁interest ▁in ▁rail ways , ▁and ▁had ▁served ▁as ▁Chair man ▁of ▁the ▁London ▁and ▁North ▁Western ▁Railway ▁from ▁ 1 8 5 2 ▁until ▁ 1 8 6 1 . ▁In ▁the ▁early ▁ 1 8 7 0 s , ▁he ▁decided ▁to ▁build ▁a ▁light ▁railway ▁to ▁transport ▁fre ight ▁from ▁his ▁est ates ▁in ▁Buck ingham shire ▁to ▁the ▁A & BR ' s ▁line ▁at ▁Qu ain ton ▁Road . ▁As ▁the ▁proposed ▁line ▁was ▁to ▁run ▁on ▁land ▁owned ▁by ▁the ▁Duke ▁and ▁by ▁the ▁Win wood ▁Char ity ▁Trust , ▁who ▁cons ented ▁to ▁its ▁construction , ▁the ▁line ▁did ▁not ▁need ▁Parliament ary ▁appro val ▁and ▁construction