Iya Dr. Mercy Mabian is a progeny of Dikome Balue village in the Balue Clan. She became President of the OCA-GA chapter by virtue of a clause in the Georgia Constitution and was unanimously voted into office after qualifying under the dues and financial-compliance requirements of the constitution.

She served two terms as President of OCA-GA. Through her organization, Angels for Oroko Children, she sponsored more than seventy Oroko children in several Oroko villages. She was later elected Vice President of OCA-USA before being elected National President in 2009.

Iya Dr. Mercy Mabian is recorded as the first elected female National President of OCA-USA, with a largely female executive membership during her administration.

Her leadership carried out pen, pencil, and raincoat projects, as well as a book project titled “Books for Knowledge and Empowerment.” Her administration also started life insurance coverage efforts for OCA-USA, first benefiting Georgia Chapter members and then opening discussions with other chapters.

In early 2012, her administration shipped a 40-foot container of medical supplies and equipment to furnish hospitals and healthcare centers in Orokoland. The administration also worked on maternity ward supplies and equipment, a school lunch program for students in village schools, and support items such as soccer jerseys, nursery uniforms, dresses, shoes, and handbags for Oroko school communities.