The Service Files series is divided into two subseries; ‘presentations, talks, and workshops,’ and the ‘Fayette worksite field school.’ The presentations, talks, and workshops primarily highlight works that Dr. Ligibel did outside of his primary employment with EMU from 1985-2017. The Fayette field school subseries details documents and research highlighting the project attempting to get Fayette, Michigan onto the National Register of Historic Places. This series is dated from 1985-2017.

The Teaching Files series is divided into numerous subseries, evident of the number of courses that Dr. Ligibel taught over his tenure. These files are organized by course number, then by year. Materials in this series include teaching materials, photographic slides, and student works. The series covers Dr. Ligibel’s teaching career at EMU from 1991-2017.