Have some doubts about Grace Ding aka Ding Ling (2) http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng

All the sources state that she left cinema in sixties but HKMDb has quite a lot of entries for her in last 25 years. My guess is that it's another Ding Ling - taiwanese actress https://zh.wikipedia.org/wiki/%E4%B8%81 ... 4%E5%91%98)
Chinese Wikipedia as you see lists some of Ding Ling (2) movies to this taiwanese actress (Comes the Black Dog, for example).

Agreed. Also found her talent agency profile w/photos here:
http://www.key-stone.com.tw/zh-hant/artist/ding-ning

She is same as Ding Ning (4)
http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng
http://hkmdb.com/db/movies/view.mhtml?i ... ay_set=eng (A TV series re-released as film, see next)
https://zh.wikipedia.org/wiki/%E4%BB%96 ... 4.E5.87.BA

INOO I will split, merge w/(4).

??(1)
Ding Ling (2)
Aliases: Grace Ding Ning, Grace Ting Ning, May Lee
Actor (32 films)
The Kid (1950) ... Staff
Song on a Rainy Night (1950) ... Taipan Pan
The Angel (1958) ... Angel
Mischievous Girl (1959)
Enchanted Melody (1959)
Kiss Me Again (1960)
My Daughter, My Daughter (1960) ... Lily
Rendezvous in the South Sea (1960)
The Fair Sex (1961) ... Li Su Fen
The Pistol (1961) ... Miss Huang
Les Belles (1961) ... Li Re
I, Murderer (1961)
All the Best (1961)
Dream of the Red Chamber (1962) ... Xi Ren
Bride Napping (1962) ... Liu Yuet-Ying
The Black Fox (1962)
When Fortune Smiles (1962)
The Empress Wu Tse-tien (1963) ... Shangguan Wan Er
The Love Eterne (1963) ... Student
Bitter Sweet (1963)
Her Sister's Keeper (1963) ... Yang Wei-Lien
Three Dolls of Hong Kong (1963)
Love Parade (1963) ... Japanese model

Moved to Ding Ning (4)

Taiwanese Hero Liao Tien-Ting (1987)
The Island of Greed (1997)
Flat Tyre (1999)
Zhan You (2001)
Comes the Black Dog (2003) ... Pan Pan
What on Earth Have I Done Wrong?! (2007) ... Ding Ning
Good Will Evil (2008)
Girlfriend, Boyfriend (2012) ... Hanako, Mabel's mother
Taipei Factory II: Alla scoperta di Taipei (2014) ... 3)
http://hkmdb.com/db/people/view.mhtml?i ... ay_set=eng ??