The jacal, an indigenous Tejano dwelling suited to the desert environment, was built about 1890[2] with a low sandstone and limestone wall about 4 feet (1.2 m), with forked poles set upright into the walls, supporting roof poles.

Luna raised a large family at the jacal, peacefully coexisting with otherwise hostile Comanche who used the Alamo Creek area as a war trail.

[2] The write-up for the National Register of Historic Places[3] states In the early years, Alamo Wash was on the Comanche War Trail through the Park, and Luna somehow established peaceful relations with these savage warriors and also with the Apaches resident in the vicinity.

In 1901, at the age of sixty he crossed the Rio Grande into the United StatesThe book A Guide to Hispanic Texas [6] says Luna's Jacal was built about 1900, which agrees with Gilberto Luna's grandson's claim, and years after the last band of Comanches moved to the Fort Sill reservation in Oklahoma in 1874–75.

This article about a property in Texas on the National Register of Historic Places is a stub.