János was born in 1909. János' father was István Asbóth and his mother was Katalin Hajba. His paternal grandparents were Sándor Ásboth and Rozália Horváth. He had a brother named Kálmán. He was the older of the two children. He died at the age of 28 on April 5th, 1937 in Körmend.1