I've been trying (not very successfully) to find books in my local public and university libraries on life in Norway in 1905 for my WIP historical. I've found plenty of information on the split between Norway and Sweden, which is useful, but doesn't really tell me whether people used telegraph offices or what they typically ate in restaurants.
I don't even know how this line of logic started, but I finally landed on the Baedeker guides. Of course!! I felt a little like Lucy Honeychurch. :) And luckily, there's a 1903 edition for Norway, Sweden, and Denmark. While the information isn't exhaustive, it does answer a lot of questions about Norway and specifically Bergen at the time, and I am so grateful that I was able to find it and download the PDF from the Internet Archive. What a useful, amazing resource.