- "Howard, Robert (1585-1653)," in Dictionary of National Biography, 1885-1900, London: Smith, Elder, & Co. (1885–1900) in 63 vols.
- "Howard, Robert (1626-1698)," in Dictionary of National Biography, 1885-1900, London: Smith, Elder, & Co. (1885–1900) in 63 vols.
- "Howard, Robert," in The New International Encyclopædia, New York: Dodd, Mead and Co. (1905), dramatist (1626-1698)
See also
edit- Author:Robert Howard, authors with this name