Eaton Lake Professional Review and Guide
"Eaton Lake used to be known as Crescent Lake because of its shape. However, the name was officially changed to Eaton Lake to commemorate William Eaton, who was shot down over Germany in 1943 at age nineteen. The mountain in whose shadow the lake lies, Eaton Peak, is named for William’s elder brother Doug, who was killed in Italy in 1944.
Many of the topographic features in the upper Fraser Valley are named after people lost in World War II. As to the trip, it gives access to the high country on the Silverhope–Sumallo Divide. The route is a short, steep, but well laid-out trail that leads to the attractive lake in its rocky bowl. The lake may be the destination for a day trip but can also serve as a stop en route to the peaks above the valley. Note, however, that these peaks are steep; Eaton Peak South at 2105 m (6900 ft) requires some technical climbing."