Swedish UPRR Workers

From: JMirabellaJr@comcast.net

I really enjoy your site and return often to read and learn more about some new aspect of this grand undertaking!  My great great great uncle Bengt Johan Johansson, 1837-1915, worked as a railroad builder (Jarnvagsbygget) for the Union Pacific.  I was told many times by my grandfather as a child that he was in the famous May 10, 1869 joining photograph.  I wish I knew what specific job he did or how long he worked for the Union Pacific railroad.  Are there any specific materials you could recommend that discuss Swedish workers?  

Keep up the great work!  

—Joe Mirabella, Jr.