Married 1791-04-17 in Uddevalla (O) to
Britta Kristina Wennerström, born 1772-01-02 in Uddevalla (O), dead 1841 in Rom, Tegneby (O).

Children:
Maria Jernberg, born 1795-11-06, dead after 1815
Elisabet Jernberg, born 1796-10-06, dead 1798-09-05
Olaus Jernberg, born 1799-03-21, dead 1799-06-17
Andreas Jernberg, born 1800-05-13, dead 1801-04-24
Maja Lisa Jernberg, born 1802-06-16, dead after 1840
Kajsa Jernberg, born 1805-06-27, dead 1805-08-18
Lars Jernberg, born 1806-10-26, dead 1809-03-28
Kajsa Jernberg, born 1809, dead 1812-11-08
Petronella Larsdotter, born 1812-02-08, dead 1896-03-15
Johan Jernberg, born 1815-04-15, dead 1815-05-24