<jshugg@westpac.com.au> wrote in message 8qaek8$ivf$1@nnrp1.deja.com">news:8qaek8$ivf$1@nnrp1.deja.com... > Speculation from a Tasmanian here, but it may also be the case that the > 48s simply lasted longer, either through having gentler branch line > lives, With the demise of the branch lines, most of their work (certainly the latter Marks) was done on main lines and in shunting yards.