[5][6] During his career, Williams faced and defeated former lightweight champions Sammy Angott, Bob Montgomery, and Beau Jack.

[4] Williams was inducted into the U.S. Army after a close non-title win against the great lightweight Sammy Angott by ten-round decision at Shibe Park in Philadelphia on September 6, 1944, though he continued regular professional boxing during his service.

[7] Williams won the NBA World Lightweight Championship before a crowd of 35,000 by a second-round knockout of Juan Zurita in Mexico City on April 18, 1945.

[4] Their first planned meeting in Philadelphia had been cancelled by the Pennsylvania Boxing Commission who recognized Bob Montgomery as the lightweight champion.

[9] On September 23, 1948, Williams successfully defended his Lightweight title against Jesse Flores winning in a tenth-round technical knockout at Yankee Stadium in New York's Bronx.

[10] On July 21, 1949, Williams defended his title against Enrique Bolanos winning in a fourth-round technical knockout before a crowd of near 19,000 at Wrigley Field in Los Angeles.

Bolanos was knocked to the mat for a count of eight early in the fourth, and then after rising received a series of left and right hooks that sent him to his knees near William's corner.

Bolanos' manager George Parnassus threw in the towel and referee Dempsey abruptly ended the bout causing the fight to be recorded as a technical knock out.

[11] On December 5, 1949, Williams defeated Freddy Dawson in a close fifteen-round decision before 10,389 fans at Convention Hall in Philadelphia.

There were several newspaper reports that wrote of Williams' fine for informing the press of a potential bribe of the judges he claimed he had heard about in a phone call.

[12] On January 17, 1949, Williams first defeated Johhny Bratton by a comfortable margin in the Arena in Philadelphia, Pennsylvania in a ten-round decision before a satisfied crowd of 8,000 fans.

[13] On January 20, 1950, before a crowd of 12,000 at Chicago Stadium, Williams won an eighth-round technical knockout against Bratton who was forced to leave the ring with a broken jaw.

[14] After returning to boxing, Bratton would briefly take the NBA World Welterweight Championship in March 1951, holding it only two months.

He held on to the crown until May 25, 1951, when he was stopped by Jimmy Carter in a fourteenth-round technical knockout at New York's Madison Square Garden.

Williams believed that the Judges upon hearing that he called the media decided to not fix the fight by giving an unfair decision to Dawson.