- CLYF : Marcus and Martha Lyon: Manuscripts
- CLYF 1/01-15 Series : Marcus Lyon Papers 1890-1942
"MWL" is an Abbreviation for Dr. Marcus Ward Lyon, Jr.
- CLYF 1/01 Group : Letters Sent (1929-1942)
- CLYF 1/01 Folder : Letters Sent (1929-1942)
- CLYF 1/02-07 Group : Letters Received 1890-1942
- CLYF 1/02 Folder : Letters Received 1890-1918
- CLYF 1/03 Folder : Letters Received 1920-1942
- CLYF 1/04 Folder : Letters of Condolence Received for deceased Martha Brewer Lyon 1942
- CLYF 1/05 Folder : J.B. Lippincourt Company, Letters received 1916-1917
- CLYF 1/06 Folder : Donald Culross Peattie, Letters received 1920-1925
- CLYF 1/07 Folder : Chas. (Charles) C. Deam 1925-1942
- CLYF 1/08-09 Group : Writings and Speeches c1919-1942c
- CLYF 1/08 Folder : Writings and Speeches c1919-1942c
- CLYF 1/08 Title : A Pair of Elk Antlers from St. Joseph County, Indiana c1931
- CLYF 1/08 Title : Small Collection of Pleistocene Mammals from Laporte County, Indiana [handwritten] c1931
- CLYF 1/08 Title : Bat Oil for Rheumatism [print-out] 1931
- CLYF 1/08 Title : [Indiana Mammals, Speech held before Hamilton County Nature Study Club] 1932
- CLYF 1/08 Title : Franklin's Ground Squirrel & its Distribution in Indiana [handwritten] c1932
- CLYF 1/08 Title : Remarks on Geomys Bursarius Illinoensis Komarek and Spencer [handwritten and two typed copies] c1932
- CLYF 1/08 Title : The Badger Taxidea Taxus (Schreiber) in Indiana [handwritten] c1932
- CLYF 1/08 Title : Distribution of the Red Squirrel in Indiana c1932
- CLYF 1/08 Title : Memorial for A.W. Butler, incomplete c1938
- CLYF 1/08 Title : Case of Infestation with Lucilia Sericata ?1941
- CLYF 1/08 Title : [Mammals Twenty to Fifty Thousand Years ago, 2 copies] nd
- CLYF 1/09 Folder : Lecture Notes 1916
- CLYF 1/10-15 Group : Miscellaneous 1898-1942
- CLYF 1/10 Folder : Articles and Magazines Collected by MWL 1925-1939
- CLYF 1/10 Title : Botany. Casuarinas of America Indentified by Branchlets and Seeds (by Donald C. Peattie) 1925/08
- CLYF 1/10 Title : Pay and Allowances, Officers' Reserve Corps & Enlisted Reserve Corps 1935/0501
- CLYF 1/10 Title : Case Histories of the Tumor Seminar held by the American Association of Clinical Pathologists 1937/0603
- CLYF 1/10 Title : Fossil Pollen Analysis of Fox Prairie Bog, Hamilton County, Indiana (by Robert L. Prettyman) 1937/11
- CLYF 1/10 Title : Pollen Spectrum of Lake Cicott Bog, Cass County, Indiana (by William M. Smith) 1937/11
- CLYF 1/10 Title : Pollen Study of Cranberry Pond, near Emporia, Madison County, Indiana (by Jean Barnett) 1937/11
- CLYF 1/10 Title : The Reproductive Cycle of the Coyote (by G. W. D. Hamlett) 1938/07
- CLYF 1/10 Title : Peptic Ulcer and the Larostidin Treatment. A Report on its Use in One Hundred and Thirty-Two Cases (by Mitchell M. Benedict) 1938/11
- CLYF 1/10 Title : Paroxysmal Bundle Branch Block Associated with Physiologic Changes in a Patient with Organic Heart Disease (by Charles Bohnengel) 1938/11
- CLYF 1/10 Title : Laboratory Methods for Testing Fungicides Used in the Treatment of Epidermophytosis (by George F. Reddish) 1939/04
- CLYF 1/10 Title : Serological Investigation of Rodent Relationships (by Harry P. Levine & Paul A. Moody) 1939/10
- CLYF 1/11 Folder : Articles and Magazines Collected by MWL 1940-1942
- CLYF 1/11 Title : On the Misuse of Meticulous (by Walter G. Stuck) 1940/06
- CLYF 1/11 Title : A Hungry New York Weasel (by Mary S. Grosjean) 1941
- CLYF 1/11 Title : Science 1942/0515
- CLYF 1/11 Title : Natural History 1942/05
- CLYF 1/11 Title : AAAS (American Association for the Advancement of Science) Bulletin 1942/05
- CLYF 1/12 Folder : Society of American Bacteriologists, Indiana Branch 1939
- CLYF 1/13 Folder : Society of American Bacteriologists, News Letter 1938-1939
- CLYF 1/14 Folder : Documents (1898-1939)
- CLYF 1/15 Folder : Miscellaneous (1934-1942)
- CLYF 2/01-04 Series : Martha Brewer Lyon Papers 1887-1935
- CLYF 2/01 Folder : Letters Received by Martha Brewer Lyon 1921
- CLYF 2/02 Folder : Writings
- CLYF 2/02 Title : Persistance of the Embryonic Fibrovascular Sheath of the Lens. Report of Case [two typed versions] nd
- CLYF 2/02 Title : Case of Conjunctivitis Caused by Staphylococcus Aureus Giving a Strongly Positive Coagulase Reaction nd
- CLYF 2/03 Folder : Articles Collected by Martha Brewer Lyon 1919-1935
- CLYF 2/03 Title : Concerning Starshaped Remnants of the Pupillary Membrane in the Anterior Lens Capsule (by W. Rumbaur) 1921
- CLYF 2/03 Title : Persistent Posterior Fibrovascular Sheath of the Lens. A Report of two Clinical Cases, and three Eyeballs Examined Microscopically 1919
- CLYF 2/04 Folder : Scrapbook 1887-1902
- CLYF Graphics Box 13/16 Item : Marcus W. Lyon: New Jersey Society of the Sons of the American Revolution membership certificate 1895/0614
- CLYF Graphics Box 14/01 Item : Marcus W. Lyon diploma, Wesleyan University, Middleton, CT 1881
- CLYF Graphics Box 14/06 Item : Marcus W. Lyon: Appointment as 2nd Lieut, 13th Infantry 1873/0113
- CLYF Graphics Box 14/07 Item : Marcus W. Lyon: Appointment as Captain of Ordnance 1886/0204
- CLYF Graphics Box 14/08 Item : Marcus W. Lyon: Appointment as 1st Lieut of Ordnance 1875/0106
- CLYF Graphics Box 25/09 Item : Marcus W. Lyon: Law degree awarded to Lyon by West Point 1872/0614
- GLYF : Marcus and Martha Lyon: Graphics
- GLYF 1/01 B/W Print : Three men and a sister nun standing outside of a car near Sousley's Lake, North Liberty, Indiana 1930/0720
- GLYF 1/01 B/W Print : Puff Adder snake in the woods in Walkerton, Indiana 1930/0720
- GLYF 1/01 B/W Print : A man standing outside near Betula Nigra (river birch) trees at the Lake of the Woods near Bremen, Indiana 1930/0720
- GLYF 1/01 B/W Print : Sea Gull Monument in Salt Lake City, Utah 1938/06
- GLYF 1/01 B/W Print : Yosemite Falls 1938/06
- GLYF 1/01 B/W Print : Royal Gorge 1938/06