Nilsson, Johannesson, By-Huggenäs, Värmland

[Stephanie Johnson]

I am hoping to find descendents of Johannes Nilsson, born Aug 3, 1807 in By parish Värmland and Maria Lisa Johannesdotter, born April 15, 1817 in Huggenäs parish Värmland.  Any information would be helpful.
 
There children were:
 
 -Anna Stina Johannesdotter, född Aug 31, 1840 in Huggenäs.  She married Salomon Svensson in 1874 and live and were living in Värmland in 1890.
 -Carolina Johannesdotter, född March 4, 1843 in Huggenäs
 -Nils Fredrik Johannesson, född Dec 2, 1846 in Smörgraven, By parish, Värmland.  He emigrated to North America in 1864, returned to Sweden in Feb 1877 and once again emigrate in May 1877.
 -Carl Magnus Johannesson, född Feb 3, 1849 in By parish, emigrated in 1891.
 -Augusta född Nov 18, 1850 in Våle, By parish.
 -Eva Lisa Johannesdotter, född Sept 29, 1853 in Våle, By parish, emigrated in 1888 from Tveta.
 -Johan Gustaf, född June 7, 1856 in Våle, By parish, emigrated i 1881, came back to Sweden and then emigrated again in 1887.
 
I have this information through the help of some wonderful people.
 
So far, Nils Fredrik Johannesson is my best lead for my farfarsfar, Fredrik (Fred) Johnson.  The information seems to fit what I do know.  Unfortunately, I have just a few pieces of information.  The birthdate is the same, Dec 2.  I have a couple of different possible years, but it could be 1846.  
 
My first record of Fredrick Johnson is 1888 in Minneapolis, Minnesota when he married Sophia Peterson.  They lived there for a couple of years, then moved to Elm Dale Township, (near Upsala) Morrison County, Minnesota.  Fredrik also worked in Little Falls, MN.  He apparently died in Virginia (City), Minnesota in May 1900.
 
An Eva Johnson is possibly Fredriks sister.  Her information and Eva Lisa Johannesdotter are very close.  Eva Johnson married John Eckstrom in 1890 in Upsala, MN.
 
I am hoping to prove or disprove that Nils Fredrik Johannesson and Fredrik Johnson are the same person.  Any family history, old letters, or even pictures (I have a couple of pictures of Fredrik Johnson) might help... any little bit of information would be wonderful.  If these are the same person, I would like to know about the rest of the family.
 
I would appreciate any help or suggestions.