- Marjorie Barrick Museum of Natural History.
- Mark
- Mark E. Taylor & Associates.
- Mark G. Ellmore (Firm)
- Mark Jensen, Marlene
- Mark Means Co.
- Mark Pearman
- Mark T. Thompson (Firm)
- Mark W. Johnson Seed Co.
- Mark W. Johnson Seed Company.
- Mark W. Simon & Son.
- Mark, David J.
- Mark, E. L. (Edward Laurens), 1847-1946
- Mark, Gordon G., 1910-
- Mark, Laura von der
- Mark, Todd R
- Mark, Walter R
- Markakis, George
- Markariani, Rosa M.
- Märkäzi näbatat bağı (Azärbaycan Milli Elmär Akademiyasi)
- Markbreiter, Rita
- Märkel, Johann Christian Friedrich
- Markel, Jonathan A.,
- Markell, Douglas A
- Markell, Edward Louis, 1888-
- Markell, Edward Louis.
- Marker, Donald F. Jr.
- Marker, Margaret E
- Marker, Margaret Eleanor
- Markert, Alexandra
- Markeson, Clyde B. (Clyde Beldon), 1925-
- Market Gardeners' and Ranch Supplies.
- Market Gardeners' Seed Co.
- Market Gardeners' Seed Company.
- Market Gardeners' Seed Store.
- Market Square Seed Store.
- Markey, A
- Markey, A S
- Markezich, Allan L.
- Markgraf, F
- Markgraf, Fr
- Markgraf, Friedrich
- Markgraf, T.
- Markgraff, Richard.
- Markham, A Macaulay
- Markham, Albert Hastings, Sir, 1841-1918
- Markham, Clements R. Sir, (Clements Robert), 1830-1916
- Markham, David Gregory.
- Markham, Edwin, 1852-1940
- Markham, Frederick.
- Markham, Gervase, 1568?-1637
- Markham, John
- Markham, John C
- Markham, John C.
- Markham, L. A.
- Markham, O Doyle
- Markham, William G.
- Markham's Nursery.
- Markhaseva, E L
- Markhaseva, E L
- Marki, Petter Z
- Markiewicz, Andrea
- Markin, George
- Markin, George P.
- Markin, Y M
- Markina, Tatiana
- Markl, Judy A.
- Markl, Jurgen
- Markle, Dennis G.
- Markle, Douglas F
- Markle, Phil
- Marklevitz, Patrick
- Markman, Borje
- Marko, A. M.
- Marko, Bálint
- Marko, P B
- Markos, Staci
- Markov, Georgi
- Markov, Georgy
- Markov, K. K.
- Markova, E
- Markovets, Mikhail
- Markov-Ristić, Zlata
- Markow, Therese A
- Markowski, Janusz
- Markowski, S
- Markowski, Stanislaw
- Marks, Ben D
- Marks, C
- Marks, C E
- Marks, E Lloyd
- Marks, E O
- Marks, E P
- Marks, E S
- Marks, Edward Lloyd
- Marks, Edward O.
- Marks, Edwin P
- Marks, Elizabeth N
- Marks, Elizabeth Nesta
- Marks, Graham Wallace
- Marks, Hyman.
- Marks, Jeffrey S.
- Marks, Josephine Peabody
- Marks, Lisa (Geologist),
- Marks, Louis S
- Marks, P. L.
- Marks, Robert E
- Marks, Victoria Saab.
- Marks, Wilbur.
- Marks, William.
- Marks, Wm.
- Marks, Zoë R C
- Markstrom, Donald C.
- Marktanner-Turneretscher, Gottlieb
- Marktvick, William
- Markum, Darrell
- Markus, Miles B
- Markwell, Norman, Dr.
- Markwick, Wiiliam
- Markwick, William, 1739-1813
- Markwick, William.
- Marlatt, C. L.
- Marler, Christopher
- Marler, Peter
- Marletta, Alessandro
- Marley, Gregory A
- Marley, Nancy A.
- Marley, Nigel J.
- Marliave, Jeffrey Burton
- Marlier, G
- Marlon, Reze
- Marloth, R. (Rudolf), 1855-1931
- Marlow Seed Company.
- Marlow, David
- Marlow, Ronald William
- Marm, Johan van
- Marmels, Jurg De
- Marmelstein, Allan D
- Marmer, H. A. (Harry Aaron), 1885-
- Marmery, J. Villin.
- Marmier, Xavier, 1809-1892
- Marmocchi, Francesco Constantino, 1805-1858
- Mármol Rada, Danetcy
- Marmolejo, Diego Fernando
- Marmolejo, José Guadalupe
- Marmolejo-Monsivais, G.J.
- Marmolejo-Monsiváis, José G.
- Marmontel, M.
- Marmontel, Miriam
- Marmottan, M Henri
- Marnac, Émile
- Marnell, F
- Marnette, J. H.
- Marney, Brenda
- Marney, Michael
- Marni, Wahap
- Marns, Frederick.
- Marocco, João Carlos
- Marochi, Murilo Z.
- Marochi, Murilo Zanetti
- Marochi, MZ
- Marohn, E
- Marois, James J.
- Marois, R
- Maroja, L. S.
- Maroja, LS.
- Marója, Maria de Fatima
- Marója, Maria de Fátima
- Maron, Charles.
- Maron, John L
- Maron, Martine
- Maroñas, M.
- Maroñas, ME.
- Maroñas, Miriam E.
- Marone, Luis
- Maroney, Samuel P
- Maroneze, DM
- Maroneze, DM.
- Maroofi, Hosein
- Maroske, S
- Maroske, Sara
- Maros-Várárhely
- Marot, Daniel, 1661-1752
- Marotel, G
- Marotta, Carolina Pellucci Barreto
- Marotta, H.
- Marotta, Philip.
- Marotz, Brian.
- Marozas, Vitas
- Marple, Mildred Fisher.
- Marples, B J
- Marples, N M
- Marples, Nicola M
- Marples, R R
- Marqua, D G
- Marquand, Ernest David, 1848-1918
- Marquard, Carl Fredrik, 1767-1809
- Marquard-Petersen, Ulf
- Marquardt, Gary
- Marquardt, Gisele Carolina
- Marquardt, Jürgen
- Marquardt, Ronald R.
- Marquardt, W. C.
- Marquardt, William H.
- Marquart, J Cl
- Marque, Silvina Menu
- Marquer, P
- Marquer, Paulette
- Marques Da Silva Junior, Jessé
- Marques de Oliveira, Alexandra Corrêa, 1968-
- Marques Dias, Ricardo
- Marques Filho, Ari de O
- Marques Filho, Arí De O
- Marques Filho, Ari de O.
- Marques Filho, Arí De O.
- Marques Filho, Ari de Oliveira
- Marques Filho, Arí de Oliveira
- Marques Júnior, Aguinaldo Nepomuceno
- Marques Mageski, Marcio
- Marques Pacheco, Josue
- Marques Santana, Gleuvânia
- Marques, A C
- Marques, AAB.
- Marquès, Adam
- Marques, Alessandro
- Marques, Ana Paula Coelho
- Marques, André
- Marques, Andréa Rodrigues
- Marques, Anelise
- Marques, Anibal Da S. J
- Marques, Antonio
- Marques, Antonio C
- Marques, Antonio C
- Marques, Antonio C.
- Marques, Antonio Carlos
- Marques, B.
- Marques, Bianca
- Marques, Carlos Alexandre
- Marques, Cindy
- Marques, Dalia
- Marques, Daniela De Argollo
- Marques, Danilo
- Marques, David Alexander
- Marques, David M. L. Motta
- Marques, Dayse
- Marques, Débora K.S.
- Marques, Debora Karla
- Marques, Delcio Dias
- Marques, Diana
- Marques, Diego Ferreira