Allison Balson
Allison Balson is an American actress, who is also a published singer and songwriter. Her bestknown role was that of Nancy Oleson on the Little House on the Prairie series which she held between 1981 and 1983. She graduated valedictorian from her high school and went on to receive a bachelors degree from Princeton University and a masters degree from Trinity College, Dublin, Ireland.
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Source: Wikipedia