Isham White emigrated to the Republic of Texas in 1838 or 1839 as a married man. Fayette County Probate Minutes in 1850 list the following heirs:
William C. White of Mississippi;
Elizabeth White, daughter of James White, deceased;
McCree White of Paseo del Norte;
Benjamin White of Lavaca County, Texas;
Martha Simms, wife of Isam Simms of Lavaca County, Texas;
Harriet Wallace, wife of James Wallace of Bastrop County, Texas;
George W. White of Travis County, Texas;
Charles White;
Louisa Gillum, wife of Richard Gillum;
Richard White;
Parmelia White;
Gustaven White; and
Jane White of Fayette County, Texas.
Report of Board of Land Commissioners of Fayette 22 Mar 1839 - 15 Jan 1840 shows 1838 emigration year
Report of unconditional land certificates of Fayette County for quarter ending 2 Dec 1850 - certificate date 29 Dec 1839