The personal belongings of an Arkansas mother and her six-year-old twins were found in a dumpster just days after the three were gunned down inside their family mansion earlier this month.

The chilling new development comes after Charity Beallis, 40, and her two young children were found dead from gunshot wounds in the family’s $760,000 Bonanza house on Dec. 3 during a welfare check amid a bitter divorce battle with her estranged and violent doctor husband.

Three days after the savage killings, a dumpster diver discovered a large black garbage bag in Fort Smith, about 10 miles from the home, containing an engraved gold necklace bearing the names of Beallis’ son and daughter, framed family photos, and children’s artwork and homework, KNWA reported.

Also inside were various documents with the slain mom’s name and address, and what appeared to be a religious painting, the outlet reported.

The woman who stumbled upon the eerie find said she immediately alerted the police when she realized the treasured keepsakes belonged to the murdered family members.

She then turned the possessions over to cops and took detectives to the dumpster — located on a side road near an apartment complex — before meeting with Beallis’ oldest son, John Powell, and his lawyer to share her story, according to the local news station.

But Powell was later reportedly surprised when he told an investigator handling the homicide about the shocking discovery, who allegedly asked, “How did you find out?”

Cops have not yet made any arrests or revealed anything about potential suspects in the disturbing case.

The trio’s bodies were found the day after Beallis had gone to a divorce hearing at the Sebastian County Courthouse, where her 56-year-old ex-husband, Randall, had been awarded joint custody of their kids.

The pair, who wedded in 2015, separated in March after the prominent physician choked his wife at their home and was arrested for domestic violence.

He pleaded guilty to the charge and was handed a one-year suspended sentence, and ordered to pay more than $1,500 in court fees.

Beallis was seeking full custody of the children under the divorce settlement, court documents show.

On the day she and her twins were found dead, Randall’s attorney filed a motion to dismiss the divorce case because “the plaintiff passed away,” according to online court records cited by 5News.

Beallis feared so badly that her husband was going to harm her and the children that she asked Arkansas Republican State Senator Terry Rice for help getting protection earlier this year, the senator told the outlet.

Rice said he put Beallis in touch with different resources available through the Arkansas State Police Crimes Against Children Division.

But Randall’s attorney previously told The Post that his client is innocent.

“Mr. Beallis was not responsible for the death of Mrs. Beallis nor his children’s deaths,” his attorney, Michael D. Pierce, told The Post earlier this month.

“Mr. Beallis has been cooperative with law enforcement and fully supports the Sebastian County Sheriff’s office investigation. We hope that the sheriff’s office finds the truth about what happened to Mrs. Charity Beallis and their children.”