Your son will have to add you, his mother and any grandparents that are still living as a new person. As soon as the next generation is deceased, you will copy the PID (the number next to or under the name of the person), and add that person to your son’s tree in the correct position, i.e. father’s father in that position on the tree. That will fill in the tree after that point.
The reason that you have to add the living people into your son’s tree as a new person is because of rights of privacy. All living persons are are listed as a new person in every tree that person is listed in.
@John Francis Klekotka
Further to what 'Kristin' has already proffered ...
No other User/Patron can see ANY "Living" individuals/persons that were created by another User/Patron; as, they ONLY reside in the "Private Spaces" of the "FamilySearch" Account of User/Patron who created them.
We CANNOT even see the ACTUAL Record in "Family Tree" of "FamilySearch" of our IMMEDIATE Family (eg. Spouse; Children; Parents; Siblings; ETC; Etc; etc) if they are "Living"; and, they have their own "FamilySearch" Account.
Of course, you can create your "Living" Family members; and, record them in "Family Tree" of "FamilySearch"; but, they will ONLY be seen by you:
- You cannot "Share" them with any other User/Patron.
- You cannot "Merge"/'Combine" them with any other "Living" individual/person residing in the "Private Spaces" of another User//Patron.
There is CURRENTLY no mechanism in "Family Tree" of "FamilySearch" for Users/Patrons, to "Share"; or, "give permission" to "Share", the "Living" individuals/persons in their own "Private Spaces" with/between other/another User/Patron.
There are a myriad of "Privacy" Laws within the many various Countries and Unions throughout the World - it is a nightmare to negotiate.
"Family Tree" of "FamilySearch" is used in many Countries and Unions throughout the World; and, as such, must adhere to the myriad of "Privacy" Laws throughout the World.
Hence, "Privacy" is one of the reasons that we cannot "Share" the "Living" individuals/persons in our own "Private Spaces" - it is NOT the ONLY reason; but, certainly has a bearing on the matter.
Another factor is that such would have to be 'Coded'/'Programmed' into the Programme that is "Family Tree" of "FamilySearch".
'Yes', these "Living" individuals/person in "Family Tree" of "FamilySearch" WILL, in fact, in many (most) cases will be "Duplicated" - unfortunately a necessary situation that currently cannot be avoided.
I know that there are "Duplicates" of the "Living" ME - at least, one for my Wife and each of our Children, not to mention my other ("Living") extended Family members.
Here are some "Knowledge Articles" in "FamilySearch" in regard to "Private Spaces" and "Living" individuals/persons:
What is a private space in Family Tree?
Who can see my living relatives in Family Tree?
We do not have our OWN "Tree" in "Family Tree" of "FamilySearch".
We ONLY have "Branches", that are interconnected, in this SINGLE "One" World "Tree", for all of us, that is "Family Tree" of "FamilySearch".
"Family Tree" of "FamilySearch" is NOT like "Ancestry_com" or the like.
We DO NOT have "Private"/"Personal" 'Trees' in "Family Tree" of "FamilySearch" like other "Web" Sites; and/or, 'standalone' personal programmes.
We do not even, own; or, manage; and, are NOT even responsible for, the "Deceased" individuals/person in "Family Tree" of "FamilySearch".
"Family Tree" of "FamilySearch" is built on a "Open Edit" Platform - hence, why any registered User/Patron can "Edit" (ie. Add, Delete; and/or, Change) ANY "Deceased" individual/person in "Family Tree" of "FamilySearch".
Here is a good place to start, with how things work in "Family Tree" of "FamilySearch" (and, other programmes as well):
Introducing The Family History Guide
The Family History Guide
I hope this helps.
He cant. (at least for any living persons)