I did some digging and found some more information on the old Springdale Allertor that was replaced in 2009. The Springdale City Council approved a 14,000 bid for a new siren to be installed at Temple Baptist. This would mean that Allertor was installed in December of 1980 or 1981.
This Allertor was the one that got me into the siren hobby, as I had no clue of what that toilet looking thing was. Every time I saw that siren, it reminded me of a toilet for some reason.