You have a good start toward a US type set that captures all the major design changes since the Mint at Philadelphia started production. Think about saving "quality" over "quantity" to assemble a small but impressive set that will please you for a long time to come. Use extra quantity to trade up for better coins. I'm glad the first question asked was not about how much they are worth. You are doing your GrandMa proud by respecting what she thought worthy of saving and handing down to you. Maybe someday you can play it forward for someone that you think is worthy of GrandMa's legacy.