Is there a link where the guidelines for entering names, birth dates and location for people whose information is missing? For example, the husband is listed and there is a birth certificate for a child that shows location and date of the child's birth. There is no sources for the parents other than the father's first and last name. Do we leave information blank? I read in Family Search that you can put in about dates (25 years for husband and 21 for wife), but I was wondering what the standard is. I have looked around the help options and used Google for search. I just wanted to know where to find this information so I can correctly input information.