Paul Mirfin spent 23 years as a train conductor but took up painting during the Covid pandemic.
Timetable changes slash services to Metrocentre, with fears Seaton Carew will be a "wasted station".
An additional late Monday to Saturday service is to be added to the timetable from 15 December.
Two carriages of the Northern train were covered with artwork in Rob Burrow's memory.
Northern Rail says it is negotiating with the RMT union about the issue.
Labour's Kim McGuinness believes regional elected mayors could improve Northern's performance.
The discarded chewing gum could also be turned into trainer soles or stationery by firm Gumdrop Ltd.
Northern says its services between Barrow and Lancaster are suspended until Friday morning.
Part of the new railway line is due to open in December, but no actual date has been announced.
