Do a Google search for Epix Mossberg Models. There is some collector interest in the 151M and related period Mossbergs. Values will depend on condition and completeness, but can range from $100-250.
Your westernfield model 732 rifle was made by mossberg as the mossberg model 810AH,for montgomery wards(westernfield).
S-130 is a type of rear sight used on Mossberg rifles- but not the model of the rifle. Take a look on the barrel.
Mossberg
Your westernfield model 732 rifle was made by mossberg as the mossberg model 810AH,for montgomery wards(westernfield).
The mossberg model 151K was made from 1950-1951.
Mossberg Model 321
Your rifle was made by the Mossberg firearms company,there model 353 is the Western field model 855a rifle.These rifles were produced by Mossberg from 1972-1985.
Your Western Field model 37 bolt action rifle was made for Montgomery Wards(Western Field) by Mossberg and sons.The Mossberg model 30 and your rifle are one and the same.The Mossberg model 30 single shot .22cal rifle was made from 1933-1935.
50-100
From what I can find out it was made by Mossberg and is the same as the Mossberg model 20 and 21.
The Mossberg and Sons Model 146B was manufactured in 1954-1958.
There are dozens of different models of the Mossberg 22 rifle. You did not tell us which model, and we need that to give you an answer. Sorry.