The National Park Service was finally established in 1916, but Pinnacles was not considered significant enough to command any Park Service resources at that time. In the meantime, a mining claim disrupted access to the traditional picnic grounds. In 1922, following repeated pleas from local residents for Park Service action, W.B. Lewis, superintendent of Yosemite National Park, was directed to visit Pinnacles and report on the circumstances to Park Service director Stephen Mather. Lewis had a difficult trip and stayed only 45 minutes, and his report included a recommendation that the monument be abandoned, since the most scenic sections were in private hands. The General Land Office, which administered lands surrounding the national monument and what was then known as Monterey National Forest, also received complaints, and in December 1922, J.H. Favorite of the GLO made a thorough report which was copied to Mather. Favorite recommended that public-domain lands be consolidated into the monument, and that a caretaker be appointed from a local homestead. In 1923, Herman Hermansen was appointed caretaker, and on May 7, 1923, the monument was enlarged by proclamation of President Warren G. Harding.