For the holidays, I plan to do a turkey, but I need to order in advance since the place I'm buying from is popular and usually sells out in pre-orders. Estimates of how much turkey to plan per person vary widely across the internet; does anyone have authoritative data on how much turkey to buy? There's clearly a difference between a small child and a hefty eater, for example, and I'd imagine the meat-to-bone ratio changes as the turkey gets larger or smaller. I also want to plan to have leftovers, since my family enjoys leftover turkey sandwiches. Does it matter how many sides I plan to make?
Note that this is for Americans at Thanksgiving, so portion sizes are intended to be larger than normal.