Geraldine Straker, Community Engagement Co-ordinator at Beamish, took part in the Newcastle Carlisle line 175th anniversary celebrations as Newcastle Central Station.
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He was told he was being let go by the Magpies in May.
A joint bid could see Hartlepool, Middlesbrough, Stockton, Redcar and Cleveland, Darlington the region become a cultural capital.
Witnesses say they were told to stay in their homes after the incident last night.