The reason you are making a Will is to distribute your estate to those you choose.
Beneficiaries can be people, charitable organizations or trusts.
Generally, you may specify any person or organization. Depending on the circumstances however, spouses have special rights. Nine states have community property laws which govern the ownership of property acquired by either spouse during the marriage. This community property is equally shared, even if the property is titled in the name of just one spouse. The exception to this rule is for property received as a gift or inheritance during a marriage, which remains the property of the recipient.