Hi Chris,
The wedding record you mention clearly states Elias' address as Doksmuget 2. There are hundreds of newspaper listings (www.nb.no/search) for labor unions contact addresses that lists entries like these:
Smørarbeidernes forening: Formand Elias Gabrielsen, Doksmuget 2. Kasserer J. Mydland, Kaisegaten 2. Sekretær Nils Gundersen, Risbakken 23.
So there can be no doubt that the Elias Gabrielsen that you have the wedding record for is the same as the Elias of the Wikipedia article.
However, Gerhard Emil Gabrielsen is not Elias' father. His baptism record is here (#3): https://media.digitalarkivet.no/view/6345/110
- Father: Ole Karl Olsen (b. 1855)
- Mother: Elen Serine Aasmundsen (b. 1855)
To confirm that this is actually the correct Elias you can look at the confirmation record (#12): https://media.digitalarkivet.no/view/3662/35
As you already found, Elias is already living with the Gabrielsen family in 1891, so he must have been adopted shortly after birth.
His mother, Elen Serine, died in labor and was buried the day after Elias' birth: https://www.digitalarkivet.no/view/267/pg00000004276685 Curiously, she died on 30 November, five days before Elias was born. She is also recorded as a widow in the burial protocol.
His Father, Ole Carl Olsen Folkvord, died on 10 Oct 1889. He is recorded dead in his hometown in 1891. https://media.digitalarkivet.no/view/5159/14 The protocol states that he was a sailor and died in Cette, France.
