The following data is extracted from Genealogy and Biography of Ontario County, New York.
(VI) Oliver, youngest son of Libbeus and Sarah (Walker) Childs, was born in Conway, July 27, 1783. He settled in Seneca, New York, where he married for his first wife, Electa, daughter of Oliver Whitmore, of that town; she died without issue, August 2, 1816. He married (second) Nancy, daughter of Selah and Huldah Hart, of Seneca; she died April 30, 1831. He married (third) Betsey, daughter of John Gilbert, of Seneca. Children by second marriage: Benjamin, mentioned elsewhere; Electa Emeline; Theron Hart; Augustus Walstein; Edmund; Emeline; Joseph, and Gilbert. Children by his third marriage: Bradley Alonzo; Nancy Augusta, and Oliver Porter Childs.
Source: Genealogy and Biography of Ontario County, New York