#1 Andrew Duncan 1956- is the author of Secret London: Exploring the Hidden City.
#2 Andrew M. Duncan is the author of Objective-C Pocket Reference.
#3 Colonel Andrew Duncan is the author of War in the Holy Land: From Meggido to the West Bank.
#4 Andrew Duncan 1940- is the author of The reality of monarchy.
#5 Andrew Duncan 1956- is a poet and the author of Skeleton Looking at Chinese Pictures.
#6 Andrew Duncan 1744-1828 was an Edinburgh doctor and the author of The Edinburgh new dispensatory.
