|   Sophie van Senden Theis was the 
              first genuine adoption professional and researcher in the history 
              of the United States. She was best known for her pioneering outcome 
              study, How Foster Children 
              Turn Out, published in 1924, in which Theis documented 
              what had become of 910 children placed in homes by the New York 
              State Charities Aid Association between 1898 and 1922. It was the 
              first large-scale inquiry of its kind, became the prototype for 
              many later outcome studies, and is still cited as a landmark in 
              the history of adoption research. 
             Theis worked for the NYSCAA for forty-five years, from 1907 until 
              her retirement in 1952, and served as the Executive Director of 
              its Child Adoption Committee for thirty-six of those years. She 
              graduated from Vassar College in 1907, at a moment when the professionalization 
              of social work was imaginable 
              but formal training in the field barely existed. From the very beginning 
              of her career, Theis set out to communicate whatever she knew about 
              desirable adoption procedures to her colleagues and a broader public 
              while also warning them about the risks of unregulated family-making. 
             
            Theis was a firm believer in adoption modernization and the empirical 
              research, specialized training, and minimum 
              standards that went along with it. Her agency embraced mental 
              tests as placement aids early on but Theis always cautioned against 
              simple-minded hereditarianism. Early on in her career, she agreed 
              that only “normal” children were qualified for family 
              life and even suggested that families who insisted on adopting children 
              with bad histories should sign binding agreements promising to return 
              them if and when abnormal characteristics appeared. In general, 
              however, Theis was less influenced by eugenics 
              than most of her peers. She trusted that children would take advantage 
              of opportunities for love and belonging and expressed confidence 
              in adoption as an institution long before most other child welfare 
              professionals. 
            Along with her NYSCAA colleague Constance Goodrich, Theis published 
              one of the first training manuals for professional child-placers 
              in 1921. It moved step-by-step through the process, devoting chapters 
              to the selection of children and homes, placement, supervision, 
              and replacement. Full of details from her own agency’s case 
              records, The Child in the Foster Home taught by example. 
              It offered concrete help to workers confused about when to reject 
              applications for children, what to do about placing siblings, and 
              how to handle the touchy issue of telling, 
              a parental responsibility that adopters often resisted against the 
              best advice of agency staff. The philosophy the manual conveyed 
              anticipated many features of therapeutic adoption. It stressed casework, 
              psychological diagnosis, and close attention to personality and 
              its adjustment.  
            Theis never married, which was far from unusual among well-educated, 
              reform-minded women of her day. She encouraged single 
              women and female couples to adopt and personally facilitated 
              the placement of two children with Jessie Taft 
              and her partner, Virginia Robinson. This illustrated that definitions 
              of acceptable and legitimate family were relatively more diverse 
              and flexible early in the twentieth century than they became later 
              on.  
            After her retirement from the NYSCAA, Theis became the Executive 
              Secretary and Treasurer of the Doris Duke Foundation. She died in 
              1957.  
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