The Alexander Doll Company
Information taken from: https://www.dollreference.com/alexander_doll.html
The Alexander Doll Company was founded in 1923, is still in operation today in New York, NY USA. In 1928 a high quality line of dolls were produced and advertised as "Madame Alexander" and is the name now commonly associated with their dolls.
Alexander dolls were produced with only a few different face molds, the dolls originality lies in the various costumes, so if your doll is not in her original costume, has no wrist tag or box - it can be nearly impossible to locate exactly who the character doll originally was. Early cloth, wood or composition dolls maybe marked or unmarked and should have a clothing tag of; doll characters name, Madame Alexander, New York USA sewn into a seam.