- Pace, Don
- Pacheco, Ignacio
- Pack Family
- Page (John H.) & Company
- Page, Don
- Palace Hotel
- Palmer, Edward
- Palmquist, Robert
- Palomino, Juan
- Paradise Parkway
- Park, Jesse
- Parker, Robert
- Parker Mortuary
- Parkview Hotel
- Parsons, Emma F.
- Parsons, George W.
- Parsons, Mildred F.
- Patagonia School
- Patten, Harold A.
- Patton, John
- Pearce, Joseph
- Peck, Anne Merriman
- Peck, Arthur L.
- Pennington Family / Geronimo Hotel
- Perry, Edgar
- Peticolas, Alfred B.
- Phelps Dodge
- Phoenix Art Museum
- Phoenix Bicentennial Celebration
- Phoenix Chamber of Commerce
- Phoenix City Government Records
- Phoenix Jaycees Rodeo
- Phoenix Land and Development Company
- Phoenix Little Theatre
- Phoenix Memorial Hospital Auxiliary
- Phoenix Post Office Ledgers
- Phoenix Press Box Association
- Phoenix Rotary Club
- Phoenix Service Center
- Phoenix Symphony Orchestra
- Phoenix Transportation Records
- Phoenix Women Take Back the Night
- Pickrell, Charles
- Pieper, August
- Pilcher, Ellen L.
- Pima County Business Licenses
- Pima County Court Ledger
- Pima County Mining Claims
- Pima County Parks & Recreation
- Pima County Post-War Planning Board
- Pima County Republican Women’s Club
- Pima County Retired Teachers (MS 1420)
- Pima County Retired Teachers (MS 1433)
- Pima County Sheriffs Posse
- Pima Monthly Meeting (Society of Friends)
- Pimeria Alta Historical Society
- Pinacate Peak Summit Register
- Pinal County
- Pinal County Legal Documents
- Pine, Harold
- Pinkerton, Anna
- Pioneer Hotel Records
- Pittman, George
- Place & Place Architects
- Planned Parenthood Collection
- Platt, Mary J School
- Platten, Mary F.
- Playbox Theatre
- Pope, Charles
- Poston, Charles D.
- Poston Relocation Center
- Potter, Eugenia
- Potter School
- Power Brothers
- Powers, Frank
- Preserving Arizona’s Wolves (PAWs)
- Presidio Inspection Reports
- Prina, Z. C.
- Priser, Forrest G.
- Priser, Vern E.
- Proebstel Family
- Programs
- Property Street Maps
- Provence, Jean
- Provencio, Ana Otero
- Pruitt, John
- Pueblo Junior Woman’s Club
- Putnam, Everett
