A paper on practices to improve hygiene in children's environments, particularly the school playground.

George E. Johnson was superintendent of the Playground Association, Pittsburgh, PA.

A paper on the social benefits of playgrounds, from the Playground Extention Committee of the Russell Sage Foundation.

Harriet Hickox Heller, Playground Association of America

A 1911 address dedicated to the prevention of infant mortality focusing on children born outside of wedlock. 

Hastings H. Hart was director of the Department of Child-Helping of the Russell Sage Foundation.

A paper aimed at how to best help children born out of wedlock, part of the report from the Virginia State Board of Charities and Corrections presented at teh Virginia Child Welfare Conference.

Hastings H. Hart was director of the Department of Child-Helping of the Russell Sage Foundation.

A condensed list of early research on recreation, published by the foundation in 1915.

Lee F. Hanmer, associate director,  Department of Child Hygiene, Russell Sage Foundation. Howard R. Knight, Department of Recreation, Russell Sage Foundation.

A report advising against a "hands off" mindset of caring for children, pubished by the Playground Association of America in 1910.

LUTHER HALSEY GULICK was president of the Playground Association of America.

Published by the Department of Child-Helping of the Russell Sage Foundation in 1911, this paper analyzes research on height and weight in children.

MILTON A. GERSHEL was attending physician of the Hebrew Sheltering Orphan Asylum of New York City.

A 1946 report suggesting how statistical research can be applied to better understand professional education and the structure and function of professional associations.

ESTHER LUCILE BROWN was director of the Department of Studies in the Professions at the Russell Sage Foundation.

A paper from the Playground Association of America calling for a play organizer position for children's play.

HOWARD BRADSTREET was a member of the Playground Association of America.

A 1908 report analyzing correlations between grade size and school performance, printed in volume II of The Psychological Clinic.

LEONARD P. AYRES was director at the Division of Education of the Russell Sage Foundation,  former general superintendent of schools for Puerto Rico, co-author of “Medical Inspection of Schools,” and author of “Laggards in Our Schools.”