Sponsor(s)/Grant Number(s)
- Lake County Forest Preserve District
- Lake Michigan Federation
- Lava Beds National Monument
- Lawrence Livermore National Laboratory
- Legacy Fellowship at the American Antiquarian Society
- Leverhulme Trust
- Levitt and Sons, Inc. (Manhasset, New York)
- Library committee for RPC
- Library of Congress, National Digital Information Infrastructure and Preservation Program (NDIIPP)
- Library of Congress NDIIPP
- Library of Congress, The National Digital Information Infrastructure and Preservation Program (NDIIPP)
- Lib-Value (http://libvalue.cci.utk.edu/)
- Lincoln Memorial Garden
- Lincoln Trails Library System
- Lisa Merrifield, Illinois Extension
- llinois Office of Undergraduate Research
- Lochmueller Group
- Louisiana Department of Highways
- Louisiana State University-Shreveport, Project Leader
- Lumber Dealears Research Council
- Lumber Dealers Research Council
- Lumbermate Company (St. Louis, Missouri)
- Lumpkin Family Foundation
- LAS Preble Research Grant fall 2015
- League of Women Voters of Jo Daviess County; Illinois State Geological Survey; Illinois State Water Survey; Illinois Sustainable Technology Center (Hazardous Waste Research Fund);. Illinois-Indiana Sea Grant (National Oceanic and Atmospheric Administration ; 074483-15907); National Science Foundation (CAREER 1553835).
- LG- 06-07-0020-07
- Library of Congress, award number A6075
- Library of Congress / NDIIPP-2 A6075
- Library of Congress, UIeRA#2008-01111-00-00
- Library of Congress, UIeRA#2008-01111-00-01
- Library Services (LG-06-07-0032-07) and National Science Foundation (OCI-0830976).
- llinois Department of Natural Resources, Division of Wildlife U.S. Fish & Wildlife ServiceFederal Aid in Wildlife Restoration W-112-R-27
- Lockheed Martin 2009-00524
- Los Alamos National Laboratory Research Contract LANL 6911J00149G