- Historic Resources Advisory Board
- Planning Department
- Landmarks
- Allen House I, Circa 1935
- Allen House II, Circa 1940
- Angler's Club, Circa 1932
- Aquinas Hall, Circa 1930
- Bickner Building, Circa 1897
- Black House, Circa 1933
- Brown-Vose House, Circa 1885
- Bryant Home Marker
- C. Didzun House, Circa 1930
- Carl House, Circa 1925
- Carman House, Circa 1857
- Carter House, Circa 1881
- Christie School
- Clara Weinstein House, Circa 1931
- Cleary House, Circa 1937
- Collard House, Circa 1860
- Conway House, Circa 1892
- Davidson House, Circa 1928
- Eastman House, Circa 1933
- Education Hall, Circa 1937
- Erickson House, Circa 1920
- F. Davidson House, Circa 1898
- Flavia Hall, Circa 1937
- Harris House, Circa 1934
- Hofer House, Circa 1930
- Iron Furnace Chimney, Circa 1865
- Jantzen Estate, Circa 1930
- Johnson Barn, Circa 1910
- Klose House, Circa 1940
- Laidlaw House, Circa 1930
- Lake Oswego Country Club, Circa 1925
- Lake Oswego Hunt Club, Circa 1938
- Lakewood School, Circa 1928
- Larson House, Circa 1920
- Log Hoist, Circa 1900
- Lueg House, Circa 1870
- Marylhurst Admin Building, Circa 1929
- Marylhurst Cemetery/Altar, Circa 1911, 1937
- McCall House, Circa 1930
- McWaters House, Circa 1930
- Methodist Episcopal Church, Circa 1894/1929
- Mulder House, Circa 1927
- Murphy Company Building, Circa 1920
- Odd Fellows Hall, Circa 1890
- Old Mine Trail, Circa 1870
- Oswego Iron Company Cottage, Circa 1880
- Parelius House, Circa 1939
- Patton House, Circa 1936
- Peg Tree, Circa 1852
- Pioneer Cemetery
- Platts House, Circa 1900
- Rogers Building I, Circa 1925
- Rogers Building II, Circa 1929
- Rogers House, Circa 1929
- Rosentreter House, Circa 1925
- Sacred Heart School, Circa 1925
- Shepard House, Circa 1918
- Smith House, Circa 1868
- St. Catherine's Hall, Circa 1937
- Sundeleaf House, Circa 1939-40
- Tualatin-Oswego Canal, Circa 1869-1871
- Tug Master's House, Circa 1905
- Twinings House, Circa 1915
- Van Houten House, Circa 1939
- Vose House, Circa 1898
- Waldorf House, Circa 1900
- Warren House, Circa 1912
- White House, Circa 1938
- Worthington House
- Landmark Homeowner's Guide
Johnson Barn, Circa 1910
Johnson Barn, Circa 1910
Location: 490 G Avenue
This barn was once part of a farm complex, which covered most of the block between 4th and 5th Street. Clifford “Happy” Johnson, the first early postal carrier to procure a delivery wagon, used it as a horse barn. Johnson was also the first postal carrier to use an automobile in the area. This building is significant as the last remaining barn in the First Addition Neighborhood and one of the last of its type in the city. The Johnson Barn is typical of early 20th century barns usually located in more populated areas.
