My mom did her residency at Harvard (Mass. General). Is she considered an alumni even though she did not do undergrad?
If you are thinking about a legacy hook for undergraduate admission, a parent must be an alumnus of Harvard College not a graduate or professional program.
@TomSrOfBoston is correct. For Harvard, only children of albums of Harvard College/Radcliffe are given legacy statue. HM D, HLS, HBS, etc. do not count.
a residency is more like a job, no different than any other person that works for the University.
Some universities count graduates of residency programs for legacy status (Duke does). But unfortunately Harvard does not.