It is a bit of an educated guess, so do not hold me to it, but my Grandfather was listed as living at 70 Crosby Street, in 1920( according to his Alien papers) ( 57 Nelson Street was his address on his wedding day in 1922) all in Maryport up to 1927. I also think it says Maryport on the front of the cart. It took a long time to get that photo as good as it is. The original is very poor.