Does "that part of the line" refer to "northern sector of Albert"?

Does "that part of the line" refer to "northern sector of Albert"?

There is much testimony regarding the occurrence of what may be called spirit intervention during the war. Captain W. E. Newcome has related the following: it was in September, 1916, that the 2nd Suffolks left Loos to go up into the northern sector of Albert. I accompanied them, and whilst in the front line trenches of that sector I, with others, witnessed one of the most remarkable occurrences of the war. About the end of October, up to November 5th, we were actually holding that part of the line with very few troops. On November 1st the Germans made a very determined attack, doing their utmost to break through. I had occasion to go down to the reserve line, and during my absence the German attack began.

"The History of Spiritualism," by Sir Arthur Conan Doyle