-
- Magee, Gene
- Maguire, Charles
- Manley, Ray
- Markow, Robert
- Martin Family
- Mathews, Rena
- Maul, John C.
- Maxey, Ben T.
- McClintock Family
- McClintock, James
- McLeRoy, Richard
- McConnell, Charles
- McCord, Myron
- McCrossin, Thomas
- McGregor, Thomas
- McNeil, Alexander P.
- Means, Don
- Mearns, Edgar A.
- Mexican Heritage
- Miami Copper Company
- Miller, Paul E.
- Miller, Silver Carl
- Millican, Ada
- Mission Photographs
- Moltzen, Marjorie
- Montgomer, Mary
- Morrill, Earl
- Morris, Earl
- Moseley, Josie L.
- Motion Picture Photograph Collection
- Murphey, Helen
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- Ramblers Hiking Club
- Rancho de la Osa
- Rapp, John
- Raymond, Edith
- Read-Strauss
- Remington Prints
- Reynolds, Albert
- Reynolds, Ray
- Richard, Stephen M.
- Richardson, John B.
- Ringgold, Jennie P.
- Risdon, Oliver A.
- Roberts, Clara Fish
- Rockfellow, John A.
- Romero, Carmen
- Roosevelt, Nicholas
- Roskruge, George
- Ross, David
- Rothrock, George
- Rudolph, L. H.
- Russo, Louis Anthony
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- Sadler, George
- Sanatorium Album
- Santa Catalina Mountains
- Santa Clara Ranch
- Saturday Morning Musical Club
- Saturday Morning Musical Club Performers
- Scavone Real Estate Albums
- Schaus, Richard
- Scott Family
- Searle, Ina
- Sheaffer, Jack
- Short, W. C.
- Sills Family
- Sinsbaugh, Anna
- Sizer, James
- Smith, Abijah
- Smith, Gusse Thomas
- Smith, Paul D.
- Solomon, Isidore
- Soule, Madelaine
- Southern Arizona Round Dancers
- Southern Pacific Railroad
- Soza Family
- Spanish Mission Ruins
- Sparkes, Grace M.
- Spaulding, Edward J.
- Speed, William S.
- Spencer Family
- Stanley, Bruce M.
- Starkweather Family
- Stereoview Collection
- Stickle, Leonard
- Sykes Family
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- Tang, Esther Don
- Taylor, Read
- Taylor, Walter P.
- Taylor, William
- Thiess, William
- Tobelmann, Henry
- Tom, Soleng
- Torrance, Robert
- Travel Album (PC 004)
- Travel Album (PC 249)
- Travel Album (PC 252)
- Tucson Aerial Views
- Tucson Citizen
- Tucson Federation of Musicians
- Tucson Fire Department
- Tucson Public Art
- Tucson Public Art Murals
- Tullar, Robert
- Tully, Barbara
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- Wakefield Family
- Walker, Francis
- Walker, Francis & Helen
- Walker, Mark
- Wallace, Norman
- Wallace, Norman G.
- Warner Family
- Wayte, Harold
- Webster, Katherine
- Western Ways
- Wetmore Family
- Wien, Amos
- Wilbur-Cruce, Eva
- Williams, Henry
- Willson, Roscoe
- Wister, Owen
- Wiswall, Charles E.
- Wood, Charles
- Woods, Gladys
- Woody, Clara T.
- Wormser, Arthur
- Worsley, A. A.
- Wratten, George M.
