Complex sentence: Parker's first session as the district judge was on May 10,1875 with court prosecutor W. H. H. Clayton, who remained the United States Attorney for the Western District of Arkansas for fourteen of Parker's twenty-one years on the court.
Split into simpler sentences: Parker's first session as the district judge was on May 10,1875 with court prosecutor W. H. H. Clayton. Clayton who remained the United States Attorney for the Western District of Arkansas for fourteen of Parker's twenty-one years on the court.