Journel of international society of sports nutrition position stand: protein and exercise. Published in 2007
http://www.jissn.com/content/4/1/8
If you can't be bothered to read it all:
"It is the position of the International Society of Sports Nutrition that exercising individuals need approximately 1.4 to 2.0 grams of protein per kilogram of bodyweight per day"
So thats 0.7 to 1g of protein per 1.1023 lbs of bodyweight. Pretty much what I was recommended.