"I don't really care who he is. It doesn't make him any exception. If you're a racist, you're always going to be a racist. And for him to want to erase it, I just think it's wrong," she said.
Mary Belmonte, the white teacher who brought the students to the neighbourhood beach that day, sees things differently.
"I believe in forgiveness," she said.
"He was just a young kid - a punk - in the mean streets of Boston. He didn't do it specifically because he was a bad kid. He was just a follower doing what the other kids were doing."
Wahlberg wants official forgiveness for a separate, more severe attack in 1988, in which he assaulted two Vietnamese men while trying to steal beer. That attack sent one of the men to hospital and landed Wahlberg in prison.
Wahlberg, in a pardon application filed in November and pending before the state parole board, acknowledges he was a teenage delinquent mixed up in drugs, alcohol and the wrong crowd.
He points to his ensuing successful acting career, restaurant ventures and philanthropic work with troubled youths as evidence he's turned his life around.
"I have apologised, many times," he said in December.
"The first opportunity I had to apologise was right there in court when all the dust had settled and I was getting shackled and taken away, and making sure I paid my debt to society and continue to try and do things that make up for the mistakes that I've made."
Court documents in the 1986 attack identify Wahlberg among a group of white boys who harassed a school group as they were leaving Savin Hill Beach in Dorchester, a mixed but segregated Boston neighbourhood that had seen racial tensions during the years the city was under court-ordered school integration.
The boys chased the black children down the street, hurling rocks and racial epithets including "Kill the n******s!" until an ambulance driver intervened. Wahlberg was 15 at the time.
Atwood still bears a scar from getting hit by a rock. No one was seriously injured but the attack left other invisible - and indelible - scars.
"I was really scared. My heart was beating fast. I couldn't believe it was happening. The names. The rocks. The kids chasing," Belmonte said.
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Wahlberg and two other white youths were issued a civil rights injunction: essentially a stern warning that if they committed another hate crime, they would be sent to jail.
But in 1988, Wahlberg, then 16, attacked two Vietnamese men while trying to steal beer near his Dorchester home.
According to the sentencing memorandum, he confronted Thanh Lam, a Vietnamese immigrant, as he was getting out of his car with two cases of beer. Wahlberg called Lam a "Vietnamese f****** s***" and beat him over the head with a 1.52-metre wooden stick until Lam lost consciousness and the rod broke in two.
Documents say Wahlberg ran up to another Vietnamese man, Hoa Trinh, and asked for help hiding. After a police cruiser drove past, he punched Trinh in the eye. Later, he made crude remarks about "slant-eyed gooks".
Wahlberg ultimately was convicted of assault and battery, marijuana possession and criminal contempt for violating the prior civil rights injunction. Trinh declined to be interviewed and efforts to locate Lam were unsuccessful.
Judith Beals, a former state prosecutor involved in the cases, said Wahlberg's crimes stand out because he violated the injunction with an even more violent attack on people of yet another race.
"It was a hate crime and that's exactly what should be on his record forever," Atwood said.
- AP