Hi Jen: Excuse the delay in answering. Have been busy on a writing project that's due soon.
Thanks for the pointing out the Old Maps site. I’ve used it before, but I hadn’t seen all of the maps of Thornton there. Black Carr is the name of a farm and the name of the area where the farm is located--the valley immediately to the southwest of Thornton. I've recently learned, after looking in the dictionary, that a carr is a fen or marshy area. On one of the topographic maps I looked at, you can see a number of springs near to one another that were/are the source of water for the fen.
I’m not certain whether or not Joseph Dobson lived on Black Carr Farm itself. When he bought a grave plot in the churchyard of Mount Zion Chapel (a few miles away from Thornton) for his first wife, Hannah (my 3x great grandmother), the record listed his residence as Black Carr. I do know, however, that he lived in three different places in Black Carr for thirty to forty years--in a little grouping of houses (hardly even a hamlet) called Keelham, at Lane Bottom, and at Lower Sandal Farm. These three places are bounded by Deep Lane (west), Brighouse-Denholme Road (south), Pit Lane (east), and Malt Kiln Lane (north).
Interestingly, the 1894 map of Thornton shows a Pit Lane Bottom that is nowhere near Pit Lane. It's directly across the Brighouse-Denholme Road from Black Carr Farm. But the 1852 map has that Pit Lane Bottom as Lane Bottom. The same map shows a second Lane Bottom, this one on Pit Lane. Two dips in the road, perhaps?
Regards,
John
