Del,
What the era, context of your query ?
The small communities of West Hartford and East Hartford were once Townships of the Parish of Horton.
The pit at East Hartford closed in 1961.
No sign of a Lamb St now.
The town/village of Cramlington lies just a couple of miles to the south of the Hartfords.
Today there is a Lamb St in the community of East Cramlington.
There once was a pit there... the Lamp Pit.
Michael