Simon Roper | Cumbria & Yorkshire - An Older Dialect Comparison @simonroper9218 | Uploaded February 2021 | Updated October 2024, 21 hours ago.
All recordings are from the Orton dialect survey, available on the British library website (along with several other interesting ones).

Gibson, Alexander 1891. The folk-speech of Cumberland and some districts adjacent. London: Bemrose & Sons.

The guide on Amazon: amazon.co.uk/Cumbrian-Language-its-Cultural-Context/dp/B08CPB4XR7/ref=sr_1_1?dchild=1&qid=1612663098&refinements=p_27%3ASimon+Roper&s=books&sr=1-1&text=Simon+Roper

The free version online: issuu.com/simonroperr/docs/cumbrian_new

(Let me know if there are any issues accessing either version)