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Mo Cowan

29th United States Senator from Massachusetts (Class 2)

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General referenceInterpretive dossier study · Crown Archives visual atlas
Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionJul 31, 2026
Entity authorityQ3915426 ↗
Source-derived summary

William Maurice "Mo" Cowan (born April 4, 1969) is an American politician who served as a United States senator from Massachusetts from February to July 2013. A member of the Democratic Party, he previously served as legal counsel and chief of staff to Governor Deval Patrick. Patrick appointed him on an interim basis to fill the vacancy left by fellow Democrat John Kerry, who resigned to become U.S. Secretary of State.

Cowan declined to run in the 2013 special election to complete the remainder of Kerry's term. He was succeeded by fellow Democrat Ed Markey. Cowan was the eighth African-American U.S. Senator and the second from Massachusetts after Edward Brooke. He was one of three African-American U.S. senators in the 113th Congress, along with Republican Senator Tim Scott from South Carolina and Democrat Cory Booker from New Jersey, although he did not serve alongside Booker, who took office on October 31, 2013.

Early life and education

Cowan was born on April 4, 1969, in rural Yadkinville, North Carolina, the son of a machinist and a seamstress. His father died when he was 16 years old.

Cowan graduated from Forbush High School.

Editorial summary

Begin with the source’s own compact description: “Mo Cowan” is 29th United States Senator from Massachusetts (Class 2). The dossier treats that line as a proposition to test through Cowan, 29th and United, not as a finished interpretation.

Editorial reviewA concise reference frame for defining the subject, testing terminology and identifying the institution closest to the evidence. The current lead gives the account dated anchors—1969, 2013—that can be checked directly. The linked authority record independently contributes the date 1969-04-04. For this dossier, Cowan, 29th and United is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “29th United States Senator from Massachusetts (Class 2)” 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.

Evidence profile

Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Jul 31, 2026. The linked authority identifier is Q3915426. VIAF identifies the subject as 2551157470197122640007. The Library of Congress control number is n2019068195. 2 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1969 and 2013.

Critical limits

A concise general-reference account can conceal disagreements about scope, terminology or the weight assigned to individual sources. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. 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.

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  • Subject orientation
  • Search vocabulary
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The closest primary source, responsible institution and strongest cited specialist reference.

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  1. Establish the record: confirm the title “Mo Cowan”, its source revision and the description used here.
  2. Expand the search: follow Mo Cowan primary sources, Mo Cowan archive and Cowan research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

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Source & attribution

This entry incorporates text from “Mo Cowan” 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.