gray/grey
chapter 1 "Her gray sun-strained eyes looked back at me with polite reciprocal curiosity out of a wan, charming, discontented face."

chapter 2 "Occasionally a line of gray cars crawls along an invisible track, gives out a ghastly creak, and comes to rest, and immediately the ash-gray men swarm up with leaden spades and stir up an impenetrable cloud, which screens their obscure operations from your sight."

chapter 2 "It was a few days before the Fourth of July, and a gray, scrawny Italian child was setting torpedoes in a row along the railroad track."