Thanks for the info, it was about 20 years ago when I rode that bus - one thing that I just remembered, when my mate and I came back to Waterloo, we discovered that the following 26 had bumped into a taxi on the bridge!That was the 26 you caught - it doesn't actually go to the centre of Hackney (which doesn't have a High Street), but you would have passed by Well Street Market. These days Hackney is looking considerably less shabby than it used to.
The 26 was created in July 1992 to replace the eastern section of route 6 and convert it to driver-only operation. Route 6 used to run all the way from Kensal Rise to Hackney Wick but was curtailed to Aldwych.