# Fame.am profile — machine-readable export
# Canonical URL: https://fame.am/person/john-grefe
# Generated: 2026-08-12T20:39:44.620Z

schema: https://schema.org/Person
url: "https://fame.am/person/john-grefe"
name: "John Grefe"
slug: "john-grefe"
description: "John Alan Grefe was an American International Master of chess."
tagline: "Chess player (1947-2013)"
gender: "male"
country:
  name: "United States"
  isoCode: "US"
category:
  name: "Musicians"
  slug: "musicians"
profileType:
  name: "Singer / Musician"
  slug: "singer"
  entityType: "https://www.wikidata.org/entity/Q177220"
birthDate: "1947-09-06"
deathDate: "2013-12-22"
livingStatus: "DECEASED"
scores:
  popularity:           41.13
  momentum:             0
  historical:           6.347481333333334
  currentAttention:     0
  sourceConfidence:     39.99999999999999
  profileCompleteness:  55
  trendDirection:       "FALLING"
ranks:
  global:   null
  country:  null
  category: null
sources:
  - url: "https://ru.wikipedia.org/wiki/%D0%93%D1%80%D0%B8%D1%84%2C_%D0%94%D0%B6%D0%BE%D0%BD"
    title: "Гриф, Джон"
    type:  "WIKIPEDIA"
  - url: "https://arz.wikipedia.org/wiki/%D8%AC%D9%88%D9%86_%D8%AC%D8%B1%D9%8A%D9%81"
    title: "جون جريف"
    type:  "WIKIPEDIA"
  - url: "https://ca.wikipedia.org/wiki/John_Grefe"
    title: "John Grefe"
    type:  "WIKIPEDIA"
  - url: "https://de.wikipedia.org/wiki/John_Grefe"
    title: "John Grefe"
    type:  "WIKIPEDIA"
  - url: "https://en.wikipedia.org/wiki/John_Grefe"
    title: "John Grefe"
    type:  "WIKIPEDIA"
  - url: "https://es.wikipedia.org/wiki/John_Grefe"
    title: "John Grefe"
    type:  "WIKIPEDIA"
  - url: "https://it.wikipedia.org/wiki/John_Grefe"
    title: "John Grefe"
    type:  "WIKIPEDIA"
  - url: "https://www.wikidata.org/wiki/Q1639912"
    title: "Wikidata"
    type:  "WIKIDATA"

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