The Smith–Johnson House, also known as The Old Brick, is a historic residence located in Oskaloosa, Iowa, United States.

[2] A lawyer, Smith was a native of Pennsylvania who settled in the town in 1848 and became county attorney the same year.

In addition to his political and legal responsibilities he founded the first bank in town, and he was involved with other profitable financial ventures.

John Kelly Johnson, an attorney who served in the Iowa Senate, took over the house after his father's death in 1894.

This article about a property in Mahaska County, Iowa on the National Register of Historic Places is a stub.