From Hendricks County court records:
In June 1911, Lida R. Scearce filed a petition in Hendricks County Circuit Court to adopt Alta McCreary. Alta was 26 years old on 26 February 1911. In September 1890, Scearce had gotten Alta from the orphans home in Knightstown, with both her parents dead at the time.
The petition was granted and Alta's name was changed to Alta M. Scearce.