Preservationist or conservationist sentiments are a development of the late 18th to early 20th centuries. Deering became an avid naturalist and preservationist. These changes caused outcry amongst the citizens of Brussels and by environmentalist and preservationist organizations. He is also noted as an educator, historical preservationist and author. Pinchot was thwarted by Congressman John F. Lacey, an ardent preservationist. In early 1900s, the Cathedral was surveyed and restored by architect and preservationist Ivan Mashkov. It is named after Californian painter and preservationist Andrew P. Hill. The function of the pledge has four aspects&colon; preservationist, pluralist, priestly, and prophetic. Conservation brigades, otherwise known as "druzhiny", engaged in preservationist and recreational outdoor activities. He later moved to Savannah, where he became a noted antiques dealer and historic preservationist. Muir threw himself into the preservationist role with great vigor. Ohlsson currently lives in San Francisco with his partner, historic preservationist Robert Guter. The school is named after preservationist John Muir. The museum is primarily the result of the efforts of Sears, a preservationist. Muir came to be known as a "preservationist".