The information noted in the document about Steve, his heart attack, and his high blood pressure would all fall under FamilyMemberHistory. This information will not return on any search driving off Nancy's id currently.
To find this information you would need to search using Steve's id - you could find his id by performing a Patient search by name.
I just double checked what data Steve has staged and it looks like he is not built out, so unfortunately you will not be able to view his specific heart attack or high BP as noted in the patient guide, but this is the general process you'd have to follow to track stuff like this down.
Please let me know if this addresses your question.