Jonathan Gary Seiberg of Lynn entered into rest on Dec. 9 at the age of 78. Beloved father of Jaret and Meredith, devoted grandfather of Naomi and Jacob, loving brother of Stanton, cherished friends of his ex-wife Deborah and her husband Frederick Bollen, and dear son of the late Louise. He grew up in Marblehead, graduated from Marblehead High School and University of Miami, and raised his family in Swampscott before retiring to Lynn. He was known for his outsized personality that endeared him to his doctors, neighbors and co-workers as well as his love of antiques, music, movies and his cat Kenzie. Due to regulation imposed by the Coronavirus Pandemic a private graveside service was held in Peabody. In lieu of flowers, expressions of sympathy may be made in his memory to the Northeast Animal Shelter in Salem.