Parents

• Henry Clinton Slade Sr. (1796–1841)
• Charlotte Ewell Weems (1801–1843)

Spouses

• Alma E. Morrill (1841–1868)

Siblings

• Charles Slade d.inf (1821–?)
• Charlotte Weems Slade (1825–1900)
• Susan Virginia Slade (1826–1848)
• Mary Frances Slade (1827–1899)
• Harriet Ascenath Slade (1832–1913)
• Columbia Ewell Slade (1840–1876)

Children

• Jessie Slade (1862–?)
• Henry Clinton Slade III (1864–?)
• Prentice Morrill Slade (1866–1945)

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