On 30 March 1859 at the residence of Leah Dunn, Essex County, Virginia, Isaac Davis was married to Martha E. Dunn by Peter Ainslie. He was 28, single, born and residing in Essex County, parents Henry Davis and Maria Cauthron, occupation farmer; she was 21, born and residing in Essex County, parents William Dunn and Leah Cauthorn. [Essex County, Virginia, Marriage Records Volume 1: 1850–1872, edited by Suzanne P. Derieux and Wesley E. Pippenger, 2011, page 85.]

On 21 January 1861, Isaac Davis and Robert P. W. Fauntleroy were bound $500 for Isaac Davis’s administration of the estate of Leah Dunn, deceased. Signed Isaac his x mark Davis, R.P.W. Fauntleroy. [Essex County, Virginia, Will Book 28, page 283.]

An inventory, appraisement, and account of sales of the estate of Leah Dunn were made on 31 January 1861 by and returned by Isaac Davis, administrator. [Essex County, Virginia, Will Book 28, pages 298–303.]

The estate of Leah Dunn, deceased, in account with Isaac Dunn, administrator, for 1861, was ordered recorded on 21 October 1861. Includes four equal distributions of $16.47 each to Isaac Davis in right of his wife, Arthur Taylor in right of his wife, Mary Dunn, and Emily F. Dunn. [Essex County, Virginia, Will Book 28, pages 328–329.]

On 19 June 1863 at the residence of Henry Greenwood, Essex County, Virginia, Isaac Davis was married to Martha Jane Greenwood by H. P. Mitchell. He was 38, widowed, born and residing in Essex County, parents Henry Davis and Maria Cauthorn, occupation farmer; she was 19, single, born and residing in Essex County, parents Henry Greenwood and Lucy Brizendine. [Essex County, Virginia, Marriage Records Volume 1: 1850–1872, edited by Suzanne P. Derieux and Wesley E. Pippenger, 2011, page 128.]