# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/mary-letitia-caldwell
# Generated: 2026-08-14T16:58:31.097Z

schema: https://schema.org/Person
url: "https://fame.am/person/mary-letitia-caldwell"
name: "Mary Letitia Caldwell"
slug: "mary-letitia-caldwell"
description: "Mary Letitia Caldwell was an American chemist. She was an instructor at Western College teaching chemistry. Mary was in a wheelchair due to muscular disability. Most of her work centered on amylase, a starch enzyme, most notably finding a method for purifying crystalline porcine pancreatic amylase. She spent sixty years doing this."
tagline: "American chemist (1890-1972)"
image: "https://commons.wikimedia.org/wiki/Special:FilePath/Mary-Letitia-Caldwell-1913.jpg?width=1200"
gender: "female"
country:
  name: "United States"
  isoCode: "US"
category:
  name: "Scientists"
  slug: "scientists"
profileType:
  name: "Scientist"
  slug: "scientist"
  entityType: "https://www.wikidata.org/entity/Q39631"
birthDate: "1890-12-18"
deathDate: "1972-07-01"
livingStatus: "DECEASED"
scores:
  popularity:           40.99
  momentum:             12.35294117647059
  historical:           5.872858666666668
  currentAttention:     0
  sourceConfidence:     35
  profileCompleteness:  70
  trendDirection:       "RISING"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://en.wikipedia.org/wiki/Mary_Letitia_Caldwell"
    title: "Mary Letitia Caldwell"
    type:  "WIKIPEDIA"
  - url: "https://ar.wikipedia.org/wiki/%D9%85%D8%A7%D8%B1%D9%8A_%D9%84%D9%8A%D8%AA%D9%8A%D8%B3%D9%8A%D8%A7_%D9%83%D8%A7%D9%84%D8%AF%D9%88%D9%8A%D9%84"
    title: "ماري ليتيسيا كالدويل"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/Mary_L._Caldwell"
    title: "Mary L. Caldwell"
    type:  "WIKIPEDIA"
  - url: "https://pl.wikipedia.org/wiki/Mary_Caldwell"
    title: "Mary Caldwell"
    type:  "WIKIPEDIA"
  - url: "https://fr.wikipedia.org/wiki/Mary_Caldwell"
    title: "Mary Caldwell"
    type:  "WIKIPEDIA"
  - url: "https://he.wikipedia.org/wiki/%D7%9E%D7%90%D7%A8%D7%99_%D7%A7%D7%95%D7%9C%D7%93%D7%95%D7%95%D7%9C"
    title: "מארי קולדוול"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q6780083"
    title: "Wikidata"
    type:  "WIKIDATA"

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