The remaining 179 cases out of the 274 provided data from which the following facts are presented: In three instances the rent exceeded the income of the head of the family; in thirty-one instances the rent equaled one-half the income of the head of the family, and in an equal number it amounted to one-third. In one case the rent was equal to three-fourths of the income, and in twenty-three cases the rent equaled one-fourth. Thus eighty-nine instances were disclosed in which the rent was in excess of one-fifth of the income of the head of the family. In most of these cases, particularly the extreme ones, the income of the head of the family was greatly supplemented by money received from lodgers or from earnings of other members of the family.

The remaining ninety families in which the rent amounted to one-fifth or less of the income of the head of the family were divided as follows: Twenty-four fell in the one-fifth column, twenty-seven in the one-sixth column, fourteen in the one-seventh column, eleven in the one-eighth column, while fourteen were in the "low" column. The last named included those ranging from one-ninth to one-twenty-third.

On the South Side, in the district from Thirty-first to Thirty-ninth Street, rents exceeded the one-fifth proportion in one-half of the sixty-two families studied, two of them paying rent in excess of income, eight paying one-half of income for rent, fourteen paying one-third, and seven paying one-fourth. Of the remaining thirty-one families in that district, seven fell in the one-fifth column, twelve in the one-sixth column, six in the one-seventh column, four in the one-eighth column and two in the "low," being one-ninth and one-eleventh.

Rents were high also in the Lake Park district, where twenty-five families of a total of thirty-six were paying in excess of the one-fifth proportion. Fourteen of these paid one-half of the income for rent, five paid one-fourth, four paid one-third, one paid three-quarters, and in one instance rent exceeded income. In only five instances was the normal one-fifth paid, two paid one-sixth, two paid one-seventh, while two paid one-ninth and one-eleventh respectively.

In the district north of Thirty-first Street, eighteen out of a total of thirty-eight families paid in excess of the one-fifth proportion, four paid one-half, nine paid one-third, and five paid one-fourth. Six families paid the normal one-fifth, five paid one-sixth, two paid one-seventh, one one-eighth, and six less than that, running as low as one-twenty-third.

The Ogden Park area was found to be a district of low rents. None of the eight families studied paid as much as the normal one-fifth. Two paid one-sixth, one paid one-seventh, three one-eighth, one one-ninth, and one one-twelfth.

The other districts did not show much variation from the normal proportion.

Examination was made of all the factors in instances where the rent equaled one-half or more of the income of the head of the family or amounted to one-third. With regard to the former it was assumed, for the purpose of the study, that it compelled renting rooms to lodgers. With regard to the one-third column, lodgers were assumed to be an economic necessity when they offered the only source of income in addition to that of the head of the family. On these bases it was found that in forty-six families supplementary income afforded by lodgers was necessary, that in three instances they were the sole source of the income, while one instance was presented of a widow whose children partly supported her, but insufficiently for their common needs.

While in most instances of high rents and low income on the part of the head of the family good reason appeared for taking lodgers, in not a few instances further analysis revealed other sources of income which might indicate that there was no economic necessity for lodgers. There was one instance on Forest Avenue, for example, where the relation of the rent to the father's income was one-third, but where his sons earned more than double his income. In another family on South State Street near Thirtieth Street, the father earned $125 a month and paid $50 a month rent, but additional income was derived from the wife, son, and daughter, in addition to that obtained from lodgers. There was likewise the case of a waiter living on Lake Park Avenue whose rent was $30 a month as against wages of $10 a week. In addition to the tips he doubtless received in his work, his wife earned $18 a week, and $6 a week was derived from lodgers. In one instance a man living near Fifty-sixth Street and Wabash Avenue paid rent equal to one-third of his wages, but had considerable income from investments.

Such instances tend to explain why only forty-eight families were found in which lodgers seemed to be an economic necessity in aiding to pay rents, when eighty-nine cases were revealed in which the rent was in excess of one-fifth of the wages of the head of the family. The family histories also showed that various means besides lodgers supplemented the insufficient income of a family head. In some cases the wife or children worked, and not infrequently their incomes exceeded those of the father.