My reason for mentioning this incident will appear further on.
McPherson, after crossing the Big Black, came into the Jackson and Vicksburg road which Sherman was on, but to his rear.

He arrived at night near the lines of the enemy, and went into camp.

McClernand moved by the direct road near the railroad to Mount Albans, and then turned to the left and put his troops on the road from Baldwin's ferry to Vicksburg.

This brought him south of McPherson.

I now had my three corps up the works built for the defence of Vicksburg, on three roads -- one to the north, one to the east and one to the south-east of the city.
By the morning of the 19th the investment was as complete as my limited number of troops would allow.