Thore Arntsen - from Norway to South Africa

After years of searching for my gggrandfather, I found him in South Africa where he got citizenship in 1905 or 1906. I contacted the National Archives there and received some papers he wrote in 1905. I haven´t found any information about him after this, and I wonder if he ever married and had children. His name was Thore Arntsen, born 1879 in Meldal, and lived in Rindal when he emigrated. I see there is a Thor Arntsen when searching in Ancestry24. He died in 1939 and info is in the database "Transvaal Deceased Estates Index 1855-1976". Could this be the Thor I am looking for ? I hope there are someone who has any kind of information about him or knows where I could find some help to find him.