John J. Lehmann

John J. Lehmann, who grew up in Sag Harbor and served in the Navy, died at home in Cuba, N.Y., on June 30. He was 27 and took his own life, his family said.

A barbecue in celebration of his life will take place on July 22 at 1 p.m. at Maidstone Park Beach in Springs.

Mr. Lehmann enlisted in the Navy in March 2010, serving until November 2011. He received a National Defense Service Medal, a Global War on Terrorism Service Medal, and a Navy Pistol Marksmanship Ribbon.

His family said he particularly enjoyed the outdoors, everything from camping to hiking to landscaping. “He was passionate about helping others and would never take no as an answer,” his mother, Dawn Moyer, said. He also loved music — a wide range of genres, from the Insane Clown Posse to the doo-wop of the 1950s.

He married Janeen Dunn on April 12, 2016, and the couple had two sons, Sabastian, 4, and Samuel, 2. He loved them immensely, his mother said. The family moved to Cuba, in western New York, in December. He worked there as a landscaper.

Mr. Lehmann was born in Wellsville, N.Y., on July 21, 1989. Ten years later, his parents, Wallace F. Moyer and the former Dawn Coleman, moved the family to Sag Harbor.

He graduated from Pierson High School in 2007 and went on to Johnson and Wales University in Rhode Island, studying criminal justice. He later returned home and continued his studies at Suffolk Community College in Riverhead.

His wife and children survive him, as do his parents, who still live in Sag Harbor. He leaves a younger brother, Benjamin Lehmann of Sag Harbor, three sisters, Rachel Moyer of Sag Harbor and Michelle Fleming and Sarah Nunn, both of Spartanburg, S.C., and a large extended family.

Mr. Lehmann was cremated. A funeral was held in Cuba on July 3.