Search london history from Roman times to modern day
A bit out of date, but this interactive map of step free London is very good
All the London railway stations :
Dalston Kingsland is on the Overground, and is not accessible to wheelchair users
between street level and platforms. There are 27 steps
See pictures and further accessible transport in London detail from links below.
Underground lines : London Overground (North London line)
AccessAble Access Guide :
Accessibility friendly : No.
General description : See wiki
More comment : National Rail Map & Guide .