Tucked away on the second floor of this unimposing building at 730 S 225 th Street in downtown Des Moines, WA,   is a treasure trove of South King County History. Historical Background It is believed that the Duwamish and Muckleshoot Native American peoples came to the present location of Des Moines to dig clams and spear salmon for their winter food supply, but that they did not have permanent camps at this location.  Captain George Vancouver passed by on May 26, 1792.  The next recorded discovery was made by explorers for the Hudson’s Bay Company in 1824. [1]  The Wilkes Expedition charted the coastline in the vicinity of the present site of Des Moines May 18, 1841. [2] The First Settlers John Moore probably arrived in the present location of Des Moines late in 1863, however, he failed to file for his Homestead Patent five years later. By mid-1872, he had filed and received his Patent.  It is thought that he was born about 1831 in Ireland and probably came to America in