- Martyn, Thomas
- Martyn, Thomas, 1735-1825
- Martyn, Thomas, active 1760-1816
- Martynenko, Nikita
- Martyniuk, John
- Martynov, A B
- Martynov, A. V. (Andreĭ, Vasīlʹevīch) 1879-1938
- Martynov, Alexander
- Martynov, Alexander V.
- Martynov, Ivan Ivanovich, 1771-1833
- Martynova, Marina G
- Martynova, O M
- Martynow, A
- Marty's Glad Patch.
- Martys, Michael F
- Marucci, Patricia L
- Marucci, Rosangela C.
- Marucci, Rosangela Cristina
- Maruch, Sandra Maria das Graças
- Maruenda, Helena
- Marugán-Lobón, Jesús,
- Marugg, Wm. W.
- Marull, Carolina
- Marullo, Rita
- Maruly, Adhy
- Maruo, H. (Hajime), 1922-
- Maruoka, Adrianny Erika
- Maruri-Aguilar, Beatriz
- Marusik, Yuri M.
- Maruyama, Ichiro
- Maruyama, Koscak
- Maruyama, Munetoshi
- Maruyama, Ōkyo, 1733-1795
- Maruyama, Pietro Kiyoshi
- Maruyama, T
- Maruyama, Tadashi
- Maruyama, Y K
- Maruyama, Yoshihiko K
- Marval, Louis de
- Marvaldi, A E
- Marvaldi, A.E.
- Marvaldi, Adriana E
- Marvaldi, Adriana E.
- Marvanoá, L
- Marvel, C. S.
- Marvell, Andrew, 1621-1678
- Marvin, Arthur Tappan.
- Marvin, Charles F. (Charles Frederick), 1858-1943
- Marvin, Charles.
- Marvin, Francis Sydney, 1863-1943
- Marvin, O. F.
- Marwick, B E N
- Marwick, J
- Marx Schaefer (Firm)
- Marx, Charles David, 1857-1939
- Marx, David.
- Marx, Edward J. F.
- Marx, F.
- Marx, F. J.
- Marx, Friedhelm
- Marx, George, 1838-1895
- Marx, Hymen
- Marx, K. F. H. (Karl Friedrich Heinrich), 1796-1877
- Marx, Karl
- Marx, Michael
- Marx, Michael T
- Marx, Paul S
- Marx, Tennis.
- Marxen, J C
- Mary A. Scott (Firm)
- Mary Baird Bond Flower Gardens.
- Mary E. Cutler (Firm)
- Mary Louise Hawkins (Firm)
- Mary M. Stump (Firm)
- Mary O. Blackburn (Nursery),
- Mary, A
- Mary, Benj.
- Mary, Didier
- Mary, Nathalie
- Maryan, Brad, 1966-
- Maryandto, I
- Maryańska-Nadachowska, Anna
- Maryant, Brad
- Maryanto, I
- Maryanto, Ibnu, 1962-
- Maryland Academy of Science and Literature.
- Maryland Academy of Sciences
- Maryland Academy of Sciences.
- Maryland Agricultural Experiment Station
- Maryland Dahlia Gardens.
- Maryland Entomological Society.
- Maryland Geological Survey.
- Maryland Herpetological Society.
- Maryland Historical Society.
- Maryland Native Plant Society
- Maryland Nursery Company.
- Maryland Nut Nurseries.
- Maryland Ornithological Society.
- Maryland State Weather Service.
- Maryland.
- Maryland. Board of Natural Resources.
- Maryland. Commissioner of Fisheries.
- Maryland. Commissioners of Fisheries.
- Maryland. Committee on Agriculture.
- Maryland. Conservation commission, 1916-
- Maryland. Department of Natural Resources.
- Maryland. Dept. of Economic and Community Development.
- Maryland. Dept. of Natural Resources.
- Maryland. Dept. of Research and Education.
- Maryland. Dept. of State Planning.
- Maryland. Forest Service.
- Maryland. General Assembly. House of Delegates. Committee on Agriculture.
- Maryland. Governor (1874-1876 : Groome)
- Maryland. Live stock sanitary board.
- Maryland. Oyster commission.
- Maryland. Shell Fish Commission.
- Maryland. Shell fish commission.
- Maryland. Shellfish commission.
- Maryland. State Agricultural Chemist.
- Maryland. State Board of Forestry.
- Maryland. State board of forestry.
- Maryland. State oyster police force.
- Maryland. State Planning Commission.
- Maryland. State Planning Dept.
- Maryland. Wetlands Study Technical Advisory Committee.
- Mary-Rousselière, Guy
- Mary-Sasal, Nathalie
- Maryson, Jacob Abraham. 1866-1919
- Maryvonne, Hamon
- März, Robert
- Marzagão, Márcia Ribeiro
- Marzall, Katia
- Marzano, Francesco Nonnis
- Marzheevskaia, O. I.
- Marzialetti, Flavio
- Marzinek, Juliana
- Marzke, Frederick O.
- Marzluff, J M
- Marzocchi-Machado, CM
- Marzocchi-Machado, CM.
- Marzuki, Mohammad Effendi
- Mas, Hugo
- Mas, Jean-François
- Mas, Jose Ramon
- Mas, M. V.
- Mas, Paloma
- Masago, Fabiana
- Masaharu, Motokawa
- Masake, Racheal A
- Masaki, Sinzo
- Masaki, Tadakatsu
- Masaki, Tomomi
- Masala, Frangky
- Masala, Y
- Masala, Yunus
- Masalles Saumell, Ramon Maria
- Masamune, Genkei
- Masan, Peter
- Masanori, Sato
- Masarirambi, Michael Tavengwa, 1964-
- Masarykova univerzita v Brně. Botanická Zahrada.
- Masashi, Harada
- Masatomi, H
- Masatomi, Hiroyuki
- Masayoshi, 1764-1824
- Mascall, Leonard, 1589
- Mascall, Leonard, 1589
- Mascara, Douglas
- Mascardi, Giacomo, active 1605-1634
- Mascardi, Vitale.
- Mascardi, Vitalis.
- Mascarello, J. T.
- Mascarenhas, André Luiz S.
- Mascarenhas, Artur Fernando Silva
- Mascarenhas, Bento Melo
- Mascarenhas, Bernardo J. de A.
- Mascarenhas, Carolina Silveira
- Mascarenhas, CS.
- Mascarenhas, Juliana
- Mascarenhas, M E
- Mascarenhas, Márcia de Jesus Oliveira
- Mascarenhas, R.
- Mascarini, L
- Mascaro, Maite
- Mascaro, Maite
- Mascart, Éleuthère Élie Nicolas, 1837-1908
- Maschinski, Joyce.
- Maschio, Daniel
- Maschio, Gleomar F.
- Maschio, Gleomar Fabiano
- Maschwitz, U
- Maschwitz, Ulrich
- Maschwitz, Ulrich.
- Mascia, Francesco
- Masciadri, Silvana
- Mascianica, Sarah
- Masciocchi, Maité
- Mascitti, Virginia I
- Mascle, A
- Masclef, Amédée
- Mascó, Mercedes
- Mas-Coma, S
- Mascov, Christian, 1673-1732
- Masdeu, Malvina
- Mase, Keiko
- Maseda, Pablo H
- Masefield, John Richard Beach.
- Masek, John.
- Masek, Michal
- Masello, Juan F
- Masello, Juan F.
- Masen, Jakob, 1606-1681
- Maser, Chris
- Maser, D
- Maser, O
- Maser, Zane
- Masetto, Ebráilon
- Masetto, Tathiana Elisa
- Mas-Guindal y Meseguer, Joaquín
- Mas-Guindal, Ascensión
- Mash, P
- Mashiko, Kazuo
- Mashiko, Miyuki
- Mashkina, Olga
- Masi, Bruno P.
- Masi, Carolina Isabel
- Masi, Giovanni Tommaso (Livorno)
- Masi, L
- Masiga, Daniel
- Masīh al-Zamān, Muḥammad,
- Masinde, P S
- Masius, Hermann, 1818-1893
- Mask, Roy.
- Maske, Erich, 1876-
- Maskell, A. E. Anderson, Mrs.
- Maskell, William Miles, 1840-1898
- Maskew, F
- Maskey, Tirtha Man, 1948-
- Maslakova, Svetlana
- Maslen, A. J.
- Maslen, Arthur J.
- Maslen, Russ
- Maslin, B. R. (Bruce Roger), 1946-
- Maslin, Paul E., 1943-
- Maslin, T. Paul (Thomas Paul)
- Maslo, Alexander
- Masloski, Kenneth
- Maslov, A. V.
- Maslova, Irina
- Maslow, Carolyn