“A two-year study made by Gray (3) of one family's food during the {{w|Great Depression|depression}} indicated that even intelligent persons living on a very low income are likely to have a deficient diet. The {{w|Diet (nutrition)|dietary}} of the three women in this family, two of whom were college students, furnished per person per day 2372 Calories, 41 grams {{w|protein}}, 0.59 gram {{w|calcium}}, 0.79 gram {{w|phosphorus}}, and 0.000754 gram iron. ...3. Gray, Greta. One family's food during the depression. Jour. Home Econ. 27:24-25. 1935.”