On four of her adopted nieces, Rachel Foster Avery, Anna Howard Shaw, Harriet Taylor Upton, and Carrie Chapman Catt, Susan felt that the greater part of her work would fall and be "worthily done."[402] Yet she feared that in their enthusiasm for efficient organization they might lose the higher concepts of freedom and justice which had been the driving force behind her work. Not having learned the lessons of leadership when the cause was unpopular, they lacked the discipline of adversity, which bred in the consecrated reformer the wisdom, tolerance, and vision so necessary for the success of her task. What they did understand far better than the highly individualistic pioneers was the value of teamwork, which grew in importance as the National American Association expanded far beyond the ability of one person to cope with it. [Illustration: Rachel Foster Avery] Probably first in her affections was Rachel Foster Avery, who had been like a daughter to her since their trip to Europe together in 1883. The confidence she felt in their friendship was always a comfort. Rachel's intelligent approach to problems made her an asset at every meeting, and Susan relied much on her judgment. In Anna Howard Shaw, ten years older than Rachel, Susan had found the hardy campaigner and orator for whom she had longed. Anna expressed a warmth and understanding that most of the younger women lacked, and best of all she loved the cause as Susan herself loved it. Because of her close friendship with Susan's niece Lucy, she was regarded as one of the family, and whenever possible between lectures she stopped over in Rochester for a good talk with "Aunt Susan." Harriet Taylor Upton of Warren, Ohio, had enlisted in the ranks in the 1880s when her father was a member of Congress. Because of her influence in Washington and Ohio, Harriet was invaluable, and Susan speedily brought her into the official circle of the National American Association as treasurer, even thinking of her as a possible president.[403] Harriet's jovial irrepressible personality readily won friends, and Susan found her a refreshing and comfortable companion, able to see a bit of humor in almost every situation. When differences of opinion at meetings threatened to get out of hand, Harriet could always be relied on to break the tension with a few witty remarks. [Illustration: Harriet Taylor Upton]