Mary Pickford Photo Codes

***This is a work in progress***

I have reviewed thousands and thousands of Mary Pickford photos. Sometimes, but not always, deciphering photo codes / negative numbers can help identify a photographer or film if one is unaware of just who or which it is. I can not stress "sometimes" enough as often times these codes were simply omitted, added by completely different entities, duplicated, or even different depending on those entities all together. With that said, here is a list of some of the most common codes (not all) that might help in some cases if you're trying to identify something.

Reference portraits originating from Mary (and ultimately sold off with her Estate) were often dated by year -- the first digits, a catalog number, and sometimes had a photographer code at the end. Since there are a ton of such photos out there, they may be worth noting:

H: George Hurrell
J.M.: John Miehle
L.B.: Lansing Brown
O.R.: K. O. Rahmn
P.D.: Preston Duncan
R.B.: Russell Ball

Publicity / production stills, while predominantly issued by the studios, found their way around the world through a variety of different avenues. Some prefixes (and suffixes) are:

3-MP: The Love Light
5.MP: Rosita
32-: Secrets
108: Hulda From Holland
194: A Romance of the Redwoods
206: The Little American
215: A Little Princess
227: Stella Maris
232: Amarilly of Clothesline Alley
240: M'Liss
245: How Could You Jean?
251: Captain Kidd Jr.
255: Johanna Enlists
A4: The Poor Little Rich Girl
A7: The Little American
A10: Rebecca of Sunnybrook Farm
A17: A Little Princess
A22: Stella Maris
A31: Amarilly of Clothesline Alley
A36: M'Liss
A37: How Could You Jean?
A46: Captain Kidd Jr.
A51: Johanna Enlists
AGP: Artcraft (generic)
AR: Little Annie Rooney
AX: Artcraft (generic)
M.B.G.: My Best Girl
MP x: Daddy Long Legs
MP x: Suds (sometimes with an H suffix, it seems)
MP x: Pollyanna
MP x: Through the Back Door
MP-x-2: The Hoodlum (suffix of 2)
MP.3.x: Heart o' the Hills (prefix of 3)
MP.3.x: The Love Light
MP.x.LF: Little Lord Fauntleroy
M.P.C.x.A: Coquette
MP.D.V.: Dorothy Vernon of Haddon Hall
MP.ROSITA: Rosita 
MP.S: Sparrows
MP-S: Secrets
T.MP: Tess of the Storm Country (1922)
T.S.P.F.: Taming to the Shrew