Complex sentence: Postbellum additions to the Abraham Brian Farm House included a 2nd floor, and the 1888 Gettysburg Cyclorama based on William H. Tipton photographs has a painted image of the house.
Split into simpler sentences: Postbellum additions to the Abraham Brian Farm House included a 2nd floor. The 1888 Gettysburg Cyclorama (which was made in conjunction with William H. Tipton photographs) has a painted image of the house.