RE: Andrew Bergstrom You're so welcome! I also found a death certificate for Andrew and posted it to his memorial. Also found his wife Anna, buried in another part of the same cemetery. Found a death certificate and an obituary for Anna.
I have sent information to the manager of their memorials to link them together.
RE: Nels E Johnson No, I know nothing of him or his family. I am simply photo documenting this cemetery to help people, such as yourself. I have filled in the full dates and middle name based on records from familysearch.org - but that is all I know. The cemetery may or may not be able to help you. They would have a file on who paid for the plot or if there are survivors. You could call (or write) them. They won't open the files for me as I am not related. Or you could send for his death certificate as that may have more information. Sorry :(
RE: Twitchel Cemetery, Lino Lakes I, like everyone else here in the frozen tundra (known as Minnesota) am eagerly awaiting the great 'thaw', lol and will check the conditions of graveyards off and on. :)