From the record
“The Seward Plantation is a historic site built in 1855, a Southern plantation-turned-ranch located in Independence, Texas. The Seward Plantation has been listed on the National Register of Historic Places since January 29, 2013.”
Wikipedia article Seward Plantation, CC BY-SA 4.0.
One of 71 National Register listings published here for Washington County · listed in 2013 · category: District.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service