The Morgan County Public Library has an extensive set of file folders dubbed "family files" with a variety of family history info for Morgan County families, ranging from inquiry letters written to the library (often with accompanying pedigree and family group charts) and newspaper clippings the staff has collected. Their website includes library hours, a community calendar, and current events.
The staff is willing to copy and send you information for a fee. However, since the Utah Genealogical Society microfilmed this collection in 1987, you can access that material from your local L.D.S. Family History center. (See repository link for film numbers.)
When you are checking on these files, don't forget to check out collateral family lines. These side families can often have important info for you. Click here for the Morgan County Public Library Genealogy Resource page