Rudolph A. Pyatt Jr., a Washington Post journalist who retired in 2000 after 19 years writing a twice-weekly column on local business, died Jan. 7  in Clinton, Md.

Mr. Pyatt was among an early corps of Black journalists that cracked the segregation barriers of Southern newspapers when he began his career in 1964 at his hometown publication, the Charleston (S.C.) News & Courier.