*a female dressed in a red tunic & pants with a red ribbon bow in her pigtailed hair and a male with a blue tunic, black vest, and black round cap (all in silk)
*Farmer's Wife dressed in a long qipao or cheongsam type cotton tunic over blue pants, she also has black shoes with an colorful embroidered flower, her hair is made up in a bun
*MeiMei (pronounced "maymay," meaning Little Sister) and a companion doll, DiDi ("deedee," Little Brother), both dressed in Chinese style wrap tops and cropped (possibly split) pants
*Precious Jade, a young lady in a qipao or cheongsam (Chinese silk dress) and stockings
*Boy in a white tunic and blue pants
*and a Hakka minority doll dressed in black peasant clothes (top & pants)
Previously on ebay, a seller noted that Ada Lum produced a "Country" and "City" series of these dolls, but I have not found this information posted elsewhere. Unfortunately their price, though generally reasonable for such lovely dolls, tends to be prohibitive for the low-budget doll collector, ranging in cost anywhere from $50-$200 per doll.
This is just an initial posting which I hope to revise and lengthen with time.