From the record
“Aker Cemetery is a historic cemetery located near Smithville, Missouri. The Aker Cemetery is the only remaining evidence of the initial settlers in the area.”
Wikipedia article Aker Cemetery, CC BY-SA 4.0.
One of 39 National Register listings published here for Clay County · listed in 1974 · category: Site.
Sources: the Wikipedia article · the case file at the National Archives · the National Register database, National Park Service