You're welcome nicoletterh.
Where did you read that the parents names are blocked out. What purpose would that serve to block out the names. I think it is the social security numbers that would be more vulnerable than my g.grandparents surname. I sure have not heard of it.
Please pass on the website where you read that.
Thank you Zlatica

http://search.ancestry.com/search/db.aspx?dbid=3693