BANGOR, Maine — Geraldine Largay. Cecil Worster. Renald Poulin. Si “Tobi” Lam.

They are the four people who vanished in Maine in 2013 and who, despite extensive efforts to find them, remain missing as the new year unfolds.

Another 14 missing-person cases are listed on the Maine State Police website, the oldest dating back to 1971. Several more cases with Maine ties are listed in the National Missing and Unidentified Persons System, a national centralized repository and resource center for missing persons and unidentified remains records.

In all, at least 36 people with ties to Maine are listed as missing.

Even though some of the cases are several years old, they remain a priority for police, Sgt. Cathy Rumsey of the Bangor Police Department said recently.

“They never close until we find someone,” she said. “There obviously comes a point where we run out of leads or ideas, in which case we look for tips and if any come in, we follow them up.”

Sometimes families and police get a lucky break, Rumsey said, citing last week’s example of a 20-year-old western New York man who was reunited with his family after an Associated Press photographer snapped a picture of him warming himself on a heating grate just blocks from the Capitol in Washington, D.C.

The four most recent Maine cases include three men and a woman ranging in age from 22 to 66. Investigators and family members continue to seek information that might lead to finding them.

Largay, 66, of Brentwood, Tenn., disappeared in July while hiking the Appalachian Trail in Franklin County, according to the Maine Warden Service.

She was last seen by hikers July 21 and was reported missing July 24. A massive search involving several Maine agencies and hundreds of volunteers ensued. The search was scaled back on Aug. 4. Ground and aerial searches conducted since then failed to turn up any sign of the woman.

Largay is described as 5 feet, 5 inches tall, 115 pounds, with brown hair and brown eyes. An experienced hiker known as “Inchworm” on the trails, she was last seen wearing a red pullover shirt, tan shorts, a blue hat and a black-and-green backpack.

After her disappearance, both the Maine Warden Service and the Largay family were seeking any information from hikers or others with specific information related to Largay and her journey on the AT, especially information related to the dates between July 21-23.

Although Largay’s family has offered a $15,000 reward for anyone able to locate her, the hiker remains missing.

Worster, 46, of Bangor left his Main Street residence near the Hampden town line on foot on Nov. 21, according to Bangor police. He was reported missing on Nov. 22 by his family members, who were concerned because this was not normal behavior for him, Rumsey said recently.

Worster is described as 5 feet, 8 inches tall, 180 pounds and having brown hair and blue eyes. He was last seen wearing blue Patriots wind pants, an olive-colored, long-sleeve T-shirt, a black stocking cap, white sneakers and a wooden beaded necklace.

After searching for Worster for several days, police released additional information, a new photograph of Worster and a description of the clothing he was last seen wearing. Bangor police also asked for assistance from members of the Down East Emergency Medicine Institute, who s pent several days around Thanksgiving searching for Worster from the ground and sky. Also involved in that effort was Julie Jones and her search dog, Quincy, of VK9 Scent Specific Search and Recovery Unit.

State game wardens came across the 67-year-old Poulin ’s green 2002 Kia Sedona near Umbazooksus Dam during an unrelated search for two missing hunters from Millinocket, Cpl. John MacDonald of the Maine Warden Service said in a news release on Dec. 1.

According to MacDonald, Poulin crossed into the U.S. on Tuesday, Nov. 26, and was to return the next day.

MacDonald said wardens believe Poulin, a Saint Come, Quebec, resident who was in the area to explore abandoned rail systems, may have encountered a problem in the Umbazooksus Dam area as early as the day he crossed the border.

Efforts to locate Poulin involved personnel from the Maine Warden Service, the Maine Forest Service, U.S. Border Patrol, Baxter State Park rangers and numerous volunteer search and rescue organizations.

The primary search area was Township 6 Range 13, located in Piscataquis County, and included both the western and southwestern shores of Umbazooksus Lake, Umbazooksus Stream and significant portions of the once-used tram railway system believed to be Poulin’s destination.

The search for Poulin was hampered by snow and wet, damp weather, MacDonald said at the time. The terrain also was very rough and swampy, he said.

The search for Poulin was suspended on Dec. 3. Poulin had yet to be found as of the end of the year, MacDonald confirmed.

Lam, 22, last was seen by his family in Bangor around 10:30 p.m. Saturday, Dec. 14, according to Bangor police. He was reported missing the next day.

A police canine team combed the area around his home on Monday, Dec. 16, without any success, Rumsey said at that time.

Lam is new to the area. The family told police that Lam was gone when they woke up, and they had no indication of where he may have gone.

Lam has no friends in the area that the family knows of, Rumsey said.

Lam stands 5 feet, 8 inches tall, weighs 180 pounds, has dark hair and brown eyes and wears glasses. He may have been wearing a dark jacket and dark winter pants.

Anyone with information about the whereabouts of Worster or Lam should call Bangor police at 947-7384. The department’s tip line can be reached by pressing ext. 6. Those with any information about Largay or Poulin should call the Maine Warden Service dispatch center at 624-7076 or go to