First broadcast in 1964, the 50th anniversary of this ballad was celebrated at the 2014 Charles Parker Day. Perhaps more importantly, the travelling people themselves took part in a celebration in New Cross the same year, on the actual anniversary date. It was led by Mark Brown, aka HedgeMustard, fronted by him, and all the live participants apart from him were from Traveller families.
An account of the event including a short film is now available:
Send Down Roots or Carry Them With You