Suddenly on February 3, 2020, of Concord, NC; formerly of Gloucester City, NJ.  Age 19 years.

Beloved son of Echo and Kevin Mergenthal.  Loving brother of Christopher Koloski, Miranda Koloski, Robert, Ava and Emily Mergenthal.  Dear grandson of Mabel and Karl Sherrer, Mimi Gloria Domina and the late Mona and Edward Mergenthal.  He is also survived by many aunts, uncles, cousins, dear friends: Tyler Mahoney and Troy Mikoski and his bird, Morty.

Johnathan was a former student at Gloucester City High School and a 2018 graduate of J.M. Robinson High School in Concord, NC.  He was currently studying Bioengineering at R.C.C.C.  Johnathan excelled in school, earning top honors in multiple Microsoft Certifications, winning the state championship on his Vex Robotics team and graduating with honors.  He enjoyed spending time with his family in various activities including family game nights and trips back to New Jersey.  Johnathan loved his pet cockatoo, Morty, and had a love of animals in general.  He was known for his quick, dark humor and practical jokes, even becoming ordained as a minister so he could buy "Jesus wafers" to overcome everyday challenges in life.  He loved making people smile and laugh and loved his family and friends.

Relatives and friends are invited to attend his viewing on Monday, February 10, 11 AM to 1 PM at the FOSTER-WARNE FUNERAL HOME, 820 Haddon Ave., Collingswood, NJ.  Interment will be private.

Burial Office and Holy Eucharist will be held on Thursday, February 13, 11 AM at HOLY TRINITY EPISCOPAL CHURCH, 839 Haddon Ave., Collingswood, NJ.  Inurnment will follow in the church memorial garden.