You can edit/change the title line of you original post to make clear what you're seeking. This lets viewers understand what you're looking for. See example below.
*Seek Descendants of Fredrick and Lorraine (Myrden) GUY*
enter surnames and variations in the surname field: Guy, Myrden, Mirden,
Entering surnames and variations in that field helps the system find your post when someone is searching those surnames.