Beginning in 1910 the American Civic Association with the support of the General Federation of Women's Clubs and the Sierra Club had led the call for a federal service to manage the parks. The noted landscape architect and planner Frederick Law Olmsted Jr. was also a booster of a single national organization to manage the National Parks.
From 1910 onwards, the American Civic Association, with support from the General Federation of Women's Clubs and the Sierra Club, championed the establishment of a federal agency to manage national parks. Frederick Law Olmsted Jr., a prominent landscape architect and planner, was also a strong advocate for a unified national organization to oversee these parks.