#1 Simpson, Mark, 1965- author of Saint Morrissey (LC 93082926)
#2 Simpson, Mark, 1967- author of Trafficking subjects (LC 2004031284)
#3 Simpson, Mark (Barrister) author of Professional negligence and liability (LC 2003052472)
#4 Simpson, Mark (Auditor) author of Alastair Sim (LC 2009020201)
#5 Simpson, Mark (Mark Andrew) author of International guide to money laundering law and practice (LC 2010029882)
#6 Simpson, Mar, author of A grape story; cannot identify with any of the above.
(7) Mark Simpson, b. 1988, British clarinettist