Named for Hiram ("Hye") Brown, founder of store, in 1880. Post office established 1886. Present store with Bavarian metalwork built in 1904. Owned by Deike family since 1923. At age four, Lyndon B. Johnson, future U.S. President, mailed a letter here- a postal customer for first time in his life. Postmaster General Lawrence F. O'Brien was sworn into cabinet of President Johnson at this post office in 1965. Recorded Texas Historic Landmark, 1966.