Off the top of my head LaMotta-Willims was very close, an SD if my mind serves, and the decision was booed by sections of the crowd. But Allan Rosenfeld, who I beleive was there the night of the fight claims it was a good decision in a very close fight. Williams was well past his best.
Marshall reportedly controlled most of the first 7 rounds against LaMotta, and LaMotta rallied over the last 3 rounds. The crowd booed the decision, but the reports I've read seem to indicate the decision was fair, and perhaps the crowd was inspired to boo by LaMotta's strong finish.
This was a write-up on the fight which I found at boxrec. Scartissue 1944-04-21 : Jake LaMotta lost to Lloyd Marshall by UD in round 10 of 10 Location: Arena, Cleveland, Ohio, USA Referee: Jackie Davis "Lloyd Marshall, the nation's #1 Light heavyweight, boxed his way to an easy 10 round victory over Jake LaMotta tonight. LaMotta, sporting a streak of eight straight victories, was no match for the Sacramento, Calif. Negro and managed to take only one round, the tenth, with a furious finish that had the fans on their feet. LaMotta's left cheekbone began to bleed in the 4th round and Marshall made the cut a target for his left jabs. In the 5th round Marshall staggered LaMotta with several hard left hooks to the jaw and body. He piled up most of his points, however, with his left jab. The Bronx Italian also suffered a split nostril in the 8th. The fastest round of the fight was the tenth. LaMotta, who had remained in a semi-crouch most of the night, opened up and tried to tag Marshall with a KO punch, but failed. Marshall took every round but the 1st and 10th on the UP scorecard. The opening canto was even as both fighters sparred for advantage." -United Press Weights: Marshall-160¼, LaMotta-158½ Retrieved from "http://www.boxrec.com/media/index.php/Lloyd_Marshall_vs._Jake_LaMotta"
Williams was not well past his best.......going into the fight he had recently beat archie moore and a couple other top fighters. hardly "way" past it. He was still a great fighter when he fought lamotta. lamotta won fair and sqaure.