In 1834, he and many of his followers migrated to the Texas frontier.

Plummer did quartermaster duty on the Texas frontier from 1848 until 1861.

Fort Griffin on the Texas frontier was later named in his honor.

People on the Texas frontier would soon learn this about him, partly because the fact was so exceptional.

He could not convince his wife to move to the Texas frontier.

When the war ended, he was assigned to a series of posts on the Texas frontier.

He was then reassigned to the Texas frontier following the war.

He also helped establish a military telegraph around the Texas frontier.

It was founded in order to manufacture coal gas on the Texas frontier.

Visitors can learn the history of the last half century of the Texas frontier between 1875 and 1925.