Thanks Anne. My unattached profiles have names of real people, and sometimes actual dates, But I have never found evidence for making them 'my' people. The subsequent answer here tells me WikiTree wants me not to merge such a profile for sake of eliminating it. Since I only have three such that I've found so far in my import, I will leave them as unattached profiles, but they will not have a bio section, only a research section that provides a link to the Research section of the descendant I was hoping to connect to, and vice versa. Hopefully, they have some connection to living people and will eventually be claimed.