Why was Hood River called Dog River?

While sitting on the patio of the wonderful Sixth Street Bistro, waiting for our delicious blackened sockeye salmon, we wondered why Hood River was originally called Dog River. We'd noticed Dog River WiFi, Dog River Coffee Company, and then on the Historical Walking Tour brochure, a mention of how an early prominent citizen had been instrumental in changing the name of the town.
So we asked our server, a local, but she didn't know. We wondered if this would be another case of asking everywhere and getting many answers.
That's what had happened in Bandon, on the coast; in order to drive from our campsite south of Coos Bay over to Bandon, everyone advised us to take Seven Devils road, in order shave 10 miles off our drive. While having coffee in Bandon on our last morning, at the tiny but fabulous Bandon Coffee Cafe, we thought we'd ask the staff how the Seven Devil's road got its' name. Well the person at the counter didn't know; she called over to a regular sitting nearby - Oh, he said, I think it's named for seven rocks off the coast, where there'd been many shipwrecks, but wasn't sure. A woman sitting nearby contradicted him and said, NO, it was named for the seven curves in the road, but suggested I ask at the Archives across the street.
So while Brad topped up the gas tank and checked the air in the tires, I went over to the Archives. The gentleman there said that there were many theories, but that most historians thought it was because back when it was only a trail, first used by Native Americans, there were seven canyons to navigate...
So why was Hood River originally called Dog River? It turns out that it got that name after starving early settlers ate dog meat to survive! No wonder they changed the name!