Jane Foster is a superhero appearing in American comic books published by Marvel Comics. Created by writers Stan Lee, Larry Lieber, and artist Jack Kirby, the character first appeared in Journey into Mystery #84 (September 1962). Jane Foster was introduced as a love interest of the superhero Thor Odinson until becoming a superhero in her own right. For many years, Foster was a nurse, employed by Dr. Donald Blake, Thor's first mortal host, before becoming a doctor herself. Foster is later revealed to be deemed worthy to wield Thor's hammer Mjolnir when the former is no longer able.
https://en.wikipedia.org/wiki/Jane_Foster