Looks like quite a few bottles are from the Owens Illinois Glass Co, and they're pretty easy to date.
Typically, and bottle made after 1945 has a 2-digit date code, for example, a bottle made in 1958 would have a date code of 58. However, bottles made between 1929 and 1945 only have single-digit codes, for example, a bottle made in 1936 would have a code of 6. It does get confusing as a bottle with a date code of 3 could either be 1933 or 1943. Eventually, you'll be able to date the bottle just by looking at its style. Glass Bottle Marks might help you with dating some of the other bottles.