This function adds records for an individual's parents.
Arguments
- x
A gedcom object.
- xref
The xref of an Individual record.
- inc_sex
Whether to populate the sex of the parents. This will ensure that there is one male and one female parent. Otherwise the sex will be assigned as "U" (undetermined).
- fath_name, moth_name
Optional names to give to the parents. Surnames must be enclosed in forward slashes.