Both sides assemble in U.S. 'Baby Veronica' adoption case By Heide Handes OKLAHOMA CITY (Reuters) - Supporters of both sides in a dispute over the adoption of a Native American girl known as "Baby Veronica" held separate rallies in Oklahoma just days after adoptive and birth parents agreed to mediation to resolve the custody battle. Some of those supporting Dusten Brown, the biological father of the girl who is fighting to keep her from going back to an adoptive family in South Carolina, rallied on Monday at the Oklahoma State Capitol in Oklahoma City. Sarah Adams-Cornell, an organizer of the rally said it highlighted the Indian Child Welfare Act, a federal law passed in 1978, that attempts to give Native American tribes control over their children. The law was meant to end decades of abuse during which many tribal children were taken away and raised by non-Native families or in boarding schools where they were sometimes not allowed to speak their indigenous languages. A separate prayer vigil supporting Veronica's adoptive parents, Matt and Melanie Capobianco, was held Sunday in Tulsa, and organizers also prayed for the Brown family. On Friday, the two sides agreed to mediation, although details of any negotiations over custody of the girl were shrouded under a judge's gag order in Cherokee County Court. The situation has become so emotionally wrenching that the governors in Oklahoma and South Carolina have spoken on the phone about it and are pushing for a resolution outside of the court. Reporting By Heidi Handes in Oklahoma City; Editing by Greg McCune and Ken Wills