If it is an imaginary aircraft carrier, why the heck not? I'd go pre-1920 just because there were far superior ships built after that and I would guess that it probably would have met it's end in 1947 at Enewitok otherwise. Borrowing from my model RR friends, it helps to build up a story around it. If you peruse the net you'll find a lot of this stuff, some of it pretty out there, but imaginative.
with thanks to navsource.org here's a shot of the Arizona and the Langley.