These are two of the historic houses in Oregon City, Dr. John McLoughlin's house on the bottom, and the Dr. Forbes Barclay house above. Both are managed by the Park Service now, as part of the Fort Vancouver interpretive site, and are open for tours:
These are Micron pen and colored pencil, with some white Signo pigment ink.
Being on a toot for historical houses, I stopped outside the Ermatinger House one afternoon. I was short on time and didn't have a sketchbook with me, but did have a Micron, so did these loose ones on a piece of manila envelope. Ermatinger is undergoing restoration, and is presently up in the air awaiting installation of a new foundation.
At its original location near the waterfront in Oregon City, this is the house where, in 1845, Asa Lovejoy and Francis Pettygrove tossed the fabled coin that decided the name of Portland, Oregon. Several moves over the generations have left the house unstable, hence its current surgeries. When it's put back together, I imagine it will have its flat-roofed front porch, columns and railings restored.