There are several Alex(ander) Roses listed on LibraryThing:
1) Alexander Rose (b. 1971) who wrote Washington's Spies: The Story of America's First Spy Ring, Kings in the North, and American Rifle: A Biography.
2) Alexander Rose who wrote The Hamilton Club and Pay The Two Dollars.
3) Rose, Alexander. Memoirs of a heterosexual
4) Rose, Alexander = Clock of the Long Now: prototype one mechanical drawings
5) Rose, Alexander Who's Got the Action
**Alex Rose wrote The Grand Banks.
*Alex Rose wrote The Musical Illusionist.