Mark Inghram
American physicist
Mark Gordon Inghram (November 13, 1919 – September 29, 2003) was an American physicist. Inghram was a member of the National Academy of Sciences.
Life
Inghram was born in Livingston, Montana. He did undergraduate work at Olivet College, receiving a B.A. in 1939. He worked in the Manhattan Project during World War II and at Argonne National Laboratories from 1945 to 1947. He received his Ph.D. from the University of Chicago in 1947. He began teaching at the University of Chicago as an instructor in 1947 and remained there until his retirement in 1985. He died at his home in Holland, Michigan in 2003. He received the Quantrell Award.
Age of the Earth
Together with Clair Patterson and George Tilton, Inghram was one of the first scientists to combine measurements on meteorites and the Earth to find the age of the Earth.
Begin with the source’s own compact description: “Mark Inghram” is american physicist. The dossier treats that line as a proposition to test through Mark, Inghram and American, not as a finished interpretation.
Why this record matters
The phrase “american physicist” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Aug 29, 2026. The linked authority identifier is Q6768179. VIAF identifies the subject as 167006635. The Library of Congress control number is no2011072700. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1919, 2003, 1939 and 1945.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Use the entry as an orientation point, then follow its citations and revision history. Names, dates and institutional relationships should be checked against the original record.
- Subject orientation
- Search vocabulary
- Locating named sources
The closest primary source, responsible institution and strongest cited specialist reference.
Three-step research path
- Establish the record: confirm the title “Mark Inghram”, its source revision and the description used here.
- Expand the search: follow Mark Inghram primary sources, Mark Inghram archive and Mark research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
- Which source most directly establishes the central claim about “Mark Inghram”?
- Which cited source is closest to the event, object or claim?
- What terminology or title could unlock a more precise catalogue search?
Search terms from this dossier
This entry incorporates text from “Mark Inghram” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.