I found this on unsolved mysteries and it mentioned October 1985 so Iam not sure which year is correct 1986 which namus states or 1985.
Mary Sasson

Mary Sasson
Real Name: Mary Sasson
Nicknames: No known nicknames
Location: Bronx, New York
Date: October 13, 1985
Bio
Occupation: Unrevealed
Date of Birth: 1902
Height: 5'3"
Weight: 135 to 145 pounds
Marital Status: Widowed
Characteristics: White hair and hazel eyes.
Case
Details: Eighty-three-year-old Mary Sasson vanished while on her way to the supermarket in the Bronx at around 8AM on October 13, 1985. She has not been seen since. According to her family, she is of poor mental condition.
Suspects: None
Extra Notes: This case first aired on April 23, 1986 as part of
Missing... Have You Seen This Person? Special #3.
Results: Unsolved
Links:
This is from third article on the link
dated March 12 1986
MISSING Family hunts lost mom, 84
By DAN O'GRADY Daily News Staff Writer Mary Sasson walked out of her daughter's home in the Bronx on Oct. 13 and became a missing person statistic when she failed to return. At 84, Sasson is senile and lives in the past, especially among the joyful memories of her children and grandchildren growing up. She remembers the happy times--taking the kids to Radio City Music Hall, or to the castle at Glen Island.
Those are among the myriad places where the family has gone in search of their loved one, who tomorrow will have been missing for five months. Charles Milne, his wife, Geraldine, and their four daughters continue the search. Geraldine Milne is Sasson's daughter. "You wake up with it every day," she said. "It's there; it's always there.
Does she have a warm enough coat? Is she eating? A thousand questions go through your mind." Her husband added, "It's still so strange. When you see an old woman with a tan coat you go over to her." Charles Milne
works in the Port Authority terminal at 41st St. and Eighth Ave. "Every time I go to work I look around for her. She knew the subway system very well and she could have gone anywhere," he said.
National TV The family's hopes have been raised recently. Mary Sasson's story is going to be on national television. She will be among the people featured on NBC's "Missing III," which will air on April 23 as part of a series focusing on missing persons. "We want to deal with the senility issue," Producer Terry Meurer said. "The whole premise of the series is to get the American people to become involved in searching for the missing persons." The TV crew filmed a scene of a woman roaming about a supermarket, the last place Mary Sasson was seen.
Sasson had lived with her daughter's family on first floor of a two-family house in the northeastern Bronx, just two blocks from the Westchester line. Her son, Peter, has four children and lives nearby in Pelham, just over the city line in Westchester. Sasson worked in the nearby long-since-closed Johnson China factory. She then worked for many years for the Reuben Donnelly direct-mail firm. Mary Sasson had come from her native Austria when she was 19, met Peter, and married him two years later.
Sasson is 5-feet-3, weighs 145 to 165 pounds,
and has white hair
and hazel eyes.
She may be missing her dentures.
When last seen,
she was wearing glasses,
a maroon-and-white checked top, a
maroon skirt,
and a tan raincoat.
Anyone with information about her whereabouts is asked to call the Missing Persons Bureau at 212-374-6913
***I noticed in this article there is a mention of dentures (which I don’t think had been mentioned before) as well as maroon and white checked top and maroon skirt with tan rain coat which is slightly different that the earlier articles which mentioned a red and white checkered dress.