Gilbert-Davis Tract (5512 Shoal Creek Blvd) is part of the Shoal Creek Greenbelt. The Parks Directory still lists it as undeveloped but it does now have a rock-lined dirt trail which is mostly flat and runs parallel to the creek. It’s about 0.4 miles each direction and is pretty shaded. It’s next to a relatively busy road, so it’s not exactly a serene woodland experience, but it’s still an enjoyable little spot. One can park in the street at the far end and drop down towards the creek from the sidewalk. In the short span I came upon just one other man walking an adorable poodle. There are no other facilities here.
Lucy Read School Park (7509 Silvercrest Drive) is just a school playground and an open field and is not runnable. Maggie Boatright Area of the Bull Creek Greenbelt has an address of 6958 Spicewood Springs Road. I looked and looked and could find no trailhead at this address, though there are many other points of entry to the Greenbelt.
Pillow School Park (8500 Rockwood Lane) has a flat gravel track that measures about a quarter mile per lap. There is no shade on the track. There are three playgrounds and a covered basketball court nearby and several children were playing there yesterday despite the extreme heat. Street parking is ample here. There are some well-done and interesting murals on the walls of the portable classrooms alongside the track, so despite the sparse landscape there is some visual interest on one end.