CREATE TABLE table_39473 ("Name" CLOB, "Type" CLOB, "Year Built" FLOAT, "Where Built" CLOB, "Initial Owners" CLOB)

Who were the initial owners of Wasco in 1858?
SELECT "Initial Owners" FROM table_39473 WHERE "Year Built" = '1858' AND "Name" = 'wasco'
SELECT "Initial Owners" FROM "table_39473" WHERE "Name" = 'wasco' AND "Year Built" = '1858'