Hi and Welcome Back to Just Answer,
Ok, let's take a look at this;
If you know the persons name, you can usually go to the county sites of the area they where married, search for a Marriage license application. That should record the anniversary date.
If you need more help Let me know
If you find this post helpful please take a few minutes to leave Feedback.
By you leaving Positive Feedback you give your Expert additional opportunities to earn extra CASH and Recognition.
If you would like to give a Bonus they are always welcome.
If there is anything else let me know, If not click accept. Thank You Michael L.