1819
Queens Park (London)
Bus service
London Underground service
1820
London Euston
On time
West Midlands Trains service
6
1822
Elephant & Castle (Lt)
Starts here
London Underground service
2
1822
Milton Keynes Central
On time
West Midlands Trains service
5
1828
Watford Junction
On time
London Overground service
1
1830
Elephant & Castle (Lt)
Starts here
London Underground service
2
1830
Queens Park (London)
Bus service
London Underground service
1834
London Euston
On time
London Overground service
2
1836
Tring
On time
West Midlands Trains service
5
1838
London Euston
On time
West Midlands Trains service
6
1841
Queens Park (London)
Bus service
London Underground service
1842
London Road Depot
Starts here
London Underground service
2
1845
Watford Junction
On time
London Overground service
1
1847
London Euston
On time
London Overground service
2
1850
London Euston
On time
West Midlands Trains service
6
1851
Queens Park (London)
Bus service
London Underground service
1851
Milton Keynes Central
On time
West Midlands Trains service
5
1853
Elephant & Castle (Lt)
Starts here
London Underground service
2
1858
Watford Junction
On time
London Overground service
1
1859
East Croydon
On time
Southern service
6
1900
Elephant & Castle (Lt)
Starts here
London Underground service
2
1901
Queens Park (London)
Bus service
London Underground service
1904
London Euston
On time
London Overground service
2
1906
Tring
On time
West Midlands Trains service
5
1908
London Euston
On time
West Midlands Trains service
6
1911
Elephant & Castle (Lt)
Starts here
London Underground service
2
1912
Queens Park (London)
Bus service
London Underground service
1915
Watford Junction
On time
Southern service
5
1915
Watford Junction
On time
London Overground service
1
1917
London Euston
On time
London Overground service
2
1921
Milton Keynes Central
On time
West Midlands Trains service
5
1923
Elephant & Castle (Lt)
Starts here
London Underground service
2
1923
London Euston
On time
West Midlands Trains service
6
1924
Queens Park (London)
Bus service
London Underground service
1931
Watford Junction
On time
London Overground service
1
1932
London Euston
On time
London Overground service
2
1934
Queens Park (London)
Bus service
London Underground service
1936
Tring
On time
West Midlands Trains service
5
1938
Elephant & Castle (Lt)
Starts here
London Underground service
2
1938
London Euston
On time
West Midlands Trains service
6
1944
Queens Park (London)
Bus service
London Underground service
1945
Watford Junction
On time
London Overground service
1
1947
London Euston
On time
London Overground service
2
1951
Milton Keynes Central
On time
West Midlands Trains service
5
1953
Elephant & Castle (Lt)
Starts here
London Underground service
2
1953
London Euston
On time
West Midlands Trains service
6
1954
Queens Park (London)
Bus service
London Underground service
1959
East Croydon
On time
Southern service
6
2000
Watford Junction
On time
London Overground service
1
2002
London Euston
On time
London Overground service
2
2004
Queens Park (London)
Bus service
London Underground service
2006
Tring
On time
West Midlands Trains service
5
2008
Elephant & Castle (Lt)
Starts here
London Underground service
2
2008
London Euston
On time
West Midlands Trains service
6
2012
Watford Junction
On time
Southern service
5
2014
Queens Park (London)
Bus service
London Underground service
2015
Watford Junction
On time
London Overground service
1
2017
London Euston
On time
London Overground service
2