# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/mary-helen-johnston
# Generated: 2026-08-14T15:58:27.985Z

schema: https://schema.org/Person
url: "https://fame.am/person/mary-helen-johnston"
name: "Mary Helen Johnston"
slug: "mary-helen-johnston"
description: "Mary Helen Johnston, later also Mary Helen McCay, is an American scientist and former astronaut. Working with NASA as an engineer in the 1960s and '70s, Johnston aspired to be an astronaut; she unsuccessfully applied in 1980 before becoming a payload specialist in 1983. Johnston retired from NASA in 1986 without having gone to space. She is a professor at Florida Institute of Technology."
tagline: "American scientist and astronaut (born 1945)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Johnston_portrait.jpg?width=1200"
gender: "female"
country:
  name: "United States"
  isoCode: "US"
profileType:
  name: "Other"
  slug: "other"
birthDate: "1945-09-17"
livingStatus: "LIVING"
scores:
  popularity:           40.79
  momentum:             1.487603305785124
  historical:           10.27167066666667
  currentAttention:     0
  sourceConfidence:     60
  profileCompleteness:  60
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://uz.wikipedia.org/wiki/Mary_Helen_Johnston"
    title: "Mary Helen Johnston"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D9%85%D8%A7%D8%B1%D9%8A_%D9%87%D9%8A%D9%84%D9%8A%D9%86_%D8%AC%D9%88%D9%86%D8%B3%D8%AA%D9%88%D9%86"
    title: "ماري هيلين جونستون"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Mary_Helen_Johnston"
    title: "Mary Helen Johnston"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/Mary_Helen_Johnston"
    title: "Mary Helen Johnston"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/Mary_Helen_Johnston"
    title: "Mary Helen Johnston"
    type:  "WIKIPEDIA"
  - url: "https://fa.wikipedia.org/wiki/%D9%85%D8%B1%DB%8C_%D9%87%D9%84%D9%86_%D8%AC%D8%A7%D9%86%D8%B3%D8%AA%D9%88%D9%86"
    title: "مری هلن جانستون"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Mary_Helen_Johnston"
    title: "Mary Helen Johnston"
    type:  "WIKIPEDIA"
  - url: "https://he.wikipedia.org/wiki/%D7%9E%D7%A8%D7%99_%D7%92'%D7%95%D7%A0%D7%A1%D7%98%D7%95%D7%9F"
    title: "מרי ג'ונסטון"
    type:  "WIKIPEDIA"
  - url: "https://hu.wikipedia.org/wiki/Mary_Helen_Johnston"
    title: "Mary Helen Johnston"
    type:  "WIKIPEDIA"
  - url: "https://id.wikipedia.org/wiki/Mary_Helen_Johnston"
    title: "Mary Helen Johnston"
    type:  "WIKIPEDIA"
  - url: "https://mad.wikipedia.org/wiki/Mary_Helen_Johnston"
    title: "Mary Helen Johnston"
    type:  "WIKIPEDIA"
  - url: "https://sq.wikipedia.org/wiki/Mary_Helen_Johnston"
    title: "Mary Helen Johnston"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q14931491"
    title: "Wikidata"
    type:  "WIKIDATA"

# bio (long form, separated for readability)
bio: |
  Imported from discovery source: wikidata-dump