- Born: 2 Mar 1819, Grøtvedt Nordre, Askim, Østfold, Norway
- Christened: 14 Mar 1819, Askim, Østfold, Norway
- Marriage (1): Sissel Andersdatter in 1839
- Died: 9 Apr 1901, Grøtvedt, Askim, Østfold, Norway
- Buried: 19 Apr 1901
Another name for Johan was Johan Gundersen Grøttvet.
Johan lived on the Fusk farm when he took over the nordre Grøttvet, bnr. 1, farm in Askim for 1600 spdl. in 1853 after his father. He farmed it until about 1890.
In the census for 1900 he was widowed and living with his daughter Julie's family on the Grøtvedt nordre farm in Askim. He was living on a pension and helping with the farm work. 10325
Johan married Sissel Andersdatter, daughter of Anders Smedsen and Tore Johannesdatter, in 1839. (Sissel Andersdatter was born on 14 Mar 1817 in Gjellestad plads, Askim, Østfold, Norway, christened on 23 Mar 1817 in Askim, Østfold, Norway and died before 1900 10325.)
In 1865 they owned and farmed the Grøttvet nordre (79b) farm in Askim. All their children were unmarried and living with them except Gustav who was a servant for Johan Olsen on Eeg vestre. 5045