No matches come up in the early newspapers, but that's not too surprising.
Have you browsed the 1868 plat maps at:http://public.fotki.com/iowaz/fayette_county_iowa/1868-plat-...
No variant of the HAGLUND surname comes up on the name lists for Dover or Clermont townships at the above site.
Do you have material that indicates that Jan Haglund OWNED the Fayette County property from which he moved in June 1869?
Have you already contacted the Fayette County Recorder's office to see what sort of indexes might exist to their maps and other resources? http://www.fayettecountyiowa.org/RECORDER.html
Also, a library in that area (West Union, for example), might maintain a surname file/index or other materials. http://www.westunion.lib.ia.us/library-information
For guidance, or perhaps to locate someone who search records for you locally, contact:
Historical Society of Fayette County http://fayettecountyiowa.org/HistoricalCenter.html