- Maryland. Board of Natural Resources.
- Maryland. Board of Natural Resources. Dept. of Research and Education.
- 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
- Marzano, Giacomo
- Marzelli, Stefan
- Marzheevskaia, O. I.
- Marziaj, Giorgio
- Marzialetti, Flavio
- Marziano, F
- Marziano, Mario
- Marzinek, Juliana
- Marzke, Frederick O.
- Marzluff, J M
- Marzocchi-Machado, CM
- Marzocchi-Machado, CM.
- Marzotto, Adriana
- Marzuki, Mohammad Effendi
- Mas, Anna
- Mas, Hugo
- Mas, Jean F.
- Mas, Jean-François
- Mas, Jose Ramon
- Mas, M. V.
- Mas, Paloma
- Masago, Fabiana
- Masaharu, Motokawa
- Masa-Iranzo, Irene
- 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
- Mascagni, Alessandro
- Mascall, Leonard, 1589
- Mascall, Leonard, 1589
- Mascara, Douglas
- Mascara, Rosario
- Mascardi, Giacomo, active 1605-1634
- Mascardi, Vitale.
- Mascardi, Vitalis.
- Mascarell, G
- 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, A. (Amédée), 1858-
- Masclef, Amédée
- Mascó, Mercedes
- Mas-Coma, S
- Mascov, Christian, 1673-1732
- Masdeu, Malvina
- Mase, Keiko
- Maseda, Pablo H
- Masefield, John R. B.
- Masefield, John Richard Beach.
- Masek, John.
- Masek, Michal
- Masello, Arianna
- Masello, Juan F
- Masello, Juan F.
- Masen, Jakob, 1606-1681
- Maser, Chris
- Maser, D
- Maser, O
- Maser, Zane
- Masera, Ricardo Freddy, 1938-
- Masetto, Ebráilon
- Masetto, Tathiana Elisa
- Mas-Guindal y Meseguer, Joaquín
- Mas-Guindal, Ascensión
- Mash, P
- Mashao, Mmatjie
- Mashar, Ali
- Mashau, Aluoneswi C
- Mashiko, Kazuo
- Mashiko, Miyuki
- Mashkina, Olga
- Masi, Bruno P.
- Masi, Carolina Isabel
- Masi, Giovanni Tommaso (Livorno)
- Masi, L
- Masic, Ermin
- Masiello, Giacomo
- Masiga, Daniel
- Masigol, Hossein
- Masīh al-Zamān, Muḥammad,
- Masin, Rizzieri R.
- Masin, Roberto
- Masin, Roberto Rizzieri
- Masinde, P S
- Masini, M A
- Masius, Hermann, 1818-1893
- Mask, Roy.
- Maske, Erich, 1876-
- Maskell, A. E. Anderson, Mrs.
- Maskell, Lindsay
- Maskell, William Miles, 1840-1898
- Maskew, F
- Maskey, Tirtha Man, 1948-
- Maslakova, Svetlana
- Maslen, A. J.
- Maslen, Arthur J.
- Maslen, Arthur John
- 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
- Maslova, Irina V
- Maslow, Carolyn
- Masnatta, Wanda J.
- Masner, L
- Masner, Lubomir
- Masner, Lubomir.
- Masoliver, Pedro Oromí
- Mason, A C
- Mason, A H
- Mason, A. P.
- Mason, Albert
- Mason, Alex
- Mason, Alice,
- Mason, Andrew C
- Mason, Arthur C. (Arthur Charles), 1881-
- Mason, B.
- Mason, B. F.
- Mason, Bill 1929-1988
- Mason, Brian Harold 1917-
- Mason, Burton B., 1889-
- Mason, C E
- Mason, C F
- Mason, C. Russell
- Mason, C. W.
- Mason, Charles F.
- Mason, Charles T
- Mason, Charles William, 1917
- Mason, Curtis, 1940-
- Mason, Cyrus, 1798-1865
- Mason, D
- Mason, D L
- Mason, D R
- Mason, David H
- Mason, David H. (David Hastings), 1828-1903
- Mason, David Townsend, 1883-1973
- Mason, Douglas E
- Mason, E
- Mason, E. R.
- Mason, Eleanor D.,
- Mason, F
- Mason, Finch.
- Mason, Frances Baker.
- Mason, Francis, 1799-1874
- Mason, Franco
- Mason, Frank
- Mason, Frederick Raoul, 1893-
- Mason, G A
- Mason, G E
- Mason, George E
- Mason, H. L. (Herbert Louis), 1896-
- Mason, Herbert Delavan, 1878-
- Mason, I
- Mason, I J
- Mason, Ira J.
- Mason, Ira,
- Mason, J R
- Mason, J Russell
- Mason, J.
- Mason, James
- Mason, John (John Harmon), 1867-
- Mason, John Alden, 1885-1967
- Mason, John James, 1916
- Mason, John M.
- Mason, John, active 1793-
- Mason, Joyce Barbara
- Mason, Katharina
- Mason, L. L.
- Mason, Leonard E
- Mason, Lola.
- Mason, M
- Mason, Mark A.
- Mason, Michael Henry, 1900-