Paul Leopold Siegler was 55 years old when he was last known to have contact in Concord, New Hampshire, on November 15, 1996. NamUs lists him as a missing person under case MP43266, with Concord, in Merrimack County, as the location connected to his disappearance. He is described as a White/Caucasian male with gray or partially gray hair and brown eyes, approximately 5 feet 7 inches to 5 feet 9 inches tall, and weighing about 160 to 180 pounds.
Paul’s story carries a heartbreaking contrast between the life he had built and the difficult circumstances he was reportedly facing by the time he disappeared. According to the City of Concord’s cold case and long-term missing persons page, Paul grew up in Concord and graduated from St. Paul’s School in 1959. He later earned a physics degree from the University of New Hampshire and an MBA from Harvard. He moved to California and, after time away, returned to Concord in the late 1970s.
Public summaries of his case describe Paul as a person with a full and accomplished background, not merely as a missing-person file. Uncovered reports that he had lived in California with his wife, enjoyed baseball, and studied violin for 10 years. These details help show the depth of his life before he became known publicly through the circumstances of his disappearance.
By the time he vanished, authorities and public case summaries indicate that Paul was experiencing homelessness in Concord. The City of Concord states that it was suspected he had developed a mental illness and eventually became homeless, living in the woods along the Merrimack River. The available public information does not provide a detailed sequence of events for November 15, 1996, and there appears to be little publicly released information about who last saw him, what he was wearing, or whether he had any belongings with him at the time.
The case remains associated with the Concord Police Department. NamUs identifies the investigating agency as the Concord Police Department, and the City of Concord includes Paul among its cold cases and long-term missing persons. The Doe Network also tracks the case as 6098DMNH and recorded a case information update for Paul Leopold Siegler in August 2025, showing that his case information has continued to receive attention in public missing-person databases.
What is publicly known about Paul Siegler’s disappearance is limited, but what is known is deeply human: he was a son, student, husband, musician, athlete, and educated professional whose later years appear to have been marked by vulnerability and instability. His disappearance from Concord in November 1996 left behind unanswered questions, and the lack of detailed public circumstances makes the case especially painful for those who may have known and cared about him.Last Seen: Nov 15, 1996
