He sits solitary on the front porch of the most famous literary home in Nebraska, bundled in a purple ski jacket to endure the too-cold April morning. The fact that he's perched on Willa Cather's childhood porch on a frigid Monday gives Tim Youd away as an outsider. So does the GoPro he's harnessed to his chest to video-record his work. But it's what Youd is doing that grabs the attention of the stray motorist driving down Cedar Street in Red Cloud--or would, if the driver glanced toward Willa's house, rolled down a window and heard a sound from a bygone era.