I am baffled as to how to add the census data about him and death information to my family's existing information. The instructions I've read refer to a "source tab" and an "unfinished attachment" and I can't find these terms anywhere.
Getting familiar with the vocabulary in Family Tree can be confusing. You mentioned two processes in Family Tree that were challenging. The first was entering death information in the Vital Section on the Detail page. Here is a link to an article, "How do I change vital information in Family Tree?" which can help you enter the death information on your great uncle. Right click anywhere on the box and it will offer to open the article in another tab or window.
The second challenge that you listed was entering a census data as a source. In FamilySearch, we can add sources from doing a Search or finding Record Hints. If you did a search for your great uncle and came across a census record he is in, you can click either on his name or the picture of the document under "View". A window will open with the indexed information and the document if available. If you believe the person in the census is your great uncle, click on the blue button, "Review & Attach Record". It takes you to the source linker page if that person is already in Family Tree. The source linker page shows the info from the census record on the left and compares it to the info of the person in Family Tree on the right. It is easy to send the information from the census over to the Family Tree record by clicking on "Add", then you give a reason you believe the document is about your great uncle and click the "Attach" button. Here is a link to an article to use as reference to do these steps:
If you happened across a Record Hint, it also can attach a source document like a census record to Family Tree. Record Hints have icons that are blue squares with a white outline of a folded document. They are found on Person detail pages, in the Tree views and on the Home Page in recommended tasks. If you click on the icon, it will display the information. You can click on "Review and Attach" and that also will take you to the Source linker page that compares the census info to the info in Family Tree. You again will see "Attach to Family Tree" once you have added the information and reason. Here's another linked article that explains how to attach Record Hints:
The "source tab" refers to the page that lists the sources for each person. Every Person Page has at least 5 tabs or different pages listed underneath the blue or pink line. They include: Details, Time Line, Sources, Collaborate and Memories. "Unfinished Attachment" refers to those individuals in a source that are not yet attached to a person's record in Family Tree. They are found on the Source Tab/Page beneath the pertinent source with individuals unattached. Here's a final linked article if you are interested in understanding about Unfinished Attachments:
We hope some of these articles and suggestions will assist you in entering your great uncle's information and sources into your family's portion of the Family Tree.
Unfinished attachments are sources that have not been fully attached to your ancestor. When attaching sources you have an option to attach it to each person that it mentions.
Note: In the Created By field, the date shown is the date when you added the source to your source box, not the date when you attached it to the person.
Hope this helps.
It would be helpful to have a little more information about your uncle. Can you provide his ID number?
What do you mean by "add the census data about him and death information to my family's existing information"? Are you trying to attach record hints or sources to your uncle's record or have attached that information to your uncle and now want to attach it to other family members? We are not sure we understand what your want to accomplish.
It might also be helpful to know what instructions you are referring to - are these an email provided by familysearch, a knowledge article from the FamilySearch Help Center, notification in Family Tree or something else?
Regarding: we received your question about : I am baffled as to how to add the census data about him and death information to my family's existing information. The instructions I've read refer to a "source tab" and an "unfinished attachment" and I can't find these terms anywhere.
We have attached a URL that gives you the steps to add the information from your census records.
If you have difficulty with this process please reply to us and we will continue to be of service to you, You can also use the ' Help Center ', the circle circle in the top of each page to assist you.