The reason why marriage records, such as Ellis County Marriage Records, are kept by the government is because these records are official records that are the best evidence in order to prove the existence of something, in this case, the marriage. There is sometimes the need to prove the existence of the marriage given that marriage is something that attaches rights and obligations upon a person, and these are rights and obligations that are binding upon the whole world. There is also the fact that marriage is something that follows the person no matter where he or she may go. It stands to reason that a person could not escape the fact of being married by running to a different jurisdiction.
At the core of Marriage Records Ellis County would be a valid marriage license, but since the same could not actually prove that the marriage happened, merely that the state had consented to the marriage, there are other records and documents that form part of the whole. These records are public records, which mean that they are available to the public at all times, even if there is no valid reason for the person searching for them to request for them.