I only knew of the first 4 locations.
(1) The original, on Santa Barbara (now Martin Luther King) in LA., since 1927.
(2) On South Western in LA. Favored by USC students.
(3) 840 E Whittier Boulevard La Habra, at least since the 1950s.
(4) In Irvine, from maybe 1985 until recently. On the endless plains, at 5465 Alton Parkway,
(5) Irvine location has now moved to PCH in Corona Del Mar.