Four members of Company M, 6th United States cavalry, captured at Williamsburg on Sunday, May 4th, by a detachment of our forces, were brought to Richmond on Wednesday evening, on the steamer Schultz. They gave the names of James Kirkpatrick, Jno. G. Quinn, Jas. Murray, and R. A. Hubbard. A Yankee named Hasbrook, Adjutant of the 5th New York regiment, captured at Harrisonburg, was also brought down on the Central cars yesterday evening, and lodged in the C. S. Military Prison.