T Stanton is correct. If a profile is managed by the project, the project will show as a manager.
Of the profiles that you mentioned, Schuett, Poorman and Trautman are all eligible for inclusion and will be added.
The project is for folks who arrived prior to the American Revolution, so Baum and Stenz arrived too late for inclusion in the project.
Reihm doesn't work, but Riehm-57 does work and will also be added.