Yes, I also found this Sheldon, but it's in Sacramento County.
I was able to find an image of the actual magazine page which is the source of this marriage record, and there is no mention of Del Norte County. So, I'm thinking this might be an error.
Page Image:
http://quod.lib.umich.edu/cgi/t/text/pageviewer-idx?c=moajrn...Marriage Record:
http://abish.byui.edu/specialCollections/westernStates/weste...Thanks for responding. :)