James Maybrick

Verified background

Biographical facts with sources.

• Retrieved Diary surfaced 1992 via Michael Barrett; competing origin stories; a watch with scratched inscriptions surfaced in 1993. ● Well supported claim: The 'Maybrick diary' surfaced in 1992 via Michael Barrett, who said a friend (Tony Devereux, by then dead) gave it to him in a pub; Barrett's wife Anne later said it had long been in her family.○ Weakly supported claim: A gentleman's pocket watch made in 1847 or 1848 was presented by Albert Johnson of Wallasey in June 1993 as further Maybrick/Ripper evidence.[1][2]

Opportunity and timeline

Where the person is documented to have been, and where the record is silent.

• Inference No evidence independent of the diary places him in Whitechapel. ○ Weakly supported claim: No evidence independent of the diary and watch (both surfacing 1992–93) links Maybrick to the murders.[1][2]

Strongest supporting evidence

The best case proponents can make from the record.

• Retrieved Electricians' timesheets coincide with the day Barrett contacted an agent (2017 claim). ◐ Disputed claim: In 2017 publisher Robert Smith cited electricians' timesheets placing workers at Battlecrease House on 9 March 1992, the day Barrett contacted a literary agent, arguing the diary came from under the floorboards; the electricians denied involvement.[1][2]

Strongest contradictory evidence

Evidence that tells against the theory.

• Retrieved Barrett swore he forged it (later complicated by retractions). ● Well supported claim: In January 1995 Barrett swore he wrote the diary at his dictation to his wife; his solicitor repudiated the affidavit and Barrett then withdrew the repudiation.[1][2]
• Retrieved Handwriting judged 20th-century in style; front pages torn out of a Victorian scrapbook. ◐ Disputed claim: Document examiner Kenneth Rendell found the handwriting more 20th-century than Victorian and noted the diary is in a genuine Victorian scrapbook with the first 20 pages torn out; ink tests gave contradictory findings.[1][2][3]

Disputed and missing

Points in dispute, and records that do not exist or were not found.

• Retrieved Ink tests contradictory; electricians deny the floorboard story. ◐ Disputed claim: Document examiner Kenneth Rendell found the handwriting more 20th-century than Victorian and noted the diary is in a genuine Victorian scrapbook with the first 20 pages torn out; ink tests gave contradictory findings.◐ Disputed claim: In 2017 publisher Robert Smith cited electricians' timesheets placing workers at Battlecrease House on 9 March 1992, the day Barrett contacted a literary agent, arguing the diary came from under the floorboards; the electricians denied involvement.[1][2][3][4][5]

Assumptions required

What a reader has to accept for the theory to work.

• Inference The diary is authentic and by Maybrick. ◐ Disputed claim: Document examiner Kenneth Rendell found the handwriting more 20th-century than Victorian and noted the diary is in a genuine Victorian scrapbook with the first 20 pages torn out; ink tests gave contradictory findings.[1][2][3]

What would change the assessment

Evidence that, if found, would move the picture.

• Inference Strengthen: independent, published dating of the ink/paper to the 1880s plus a handwriting match. Weaken: proof of the forger or source. ◐ Disputed claim: Document examiner Kenneth Rendell found the handwriting more 20th-century than Victorian and noted the diary is in a genuine Victorian scrapbook with the first 20 pages torn out; ink tests gave contradictory findings.● Well supported claim: In January 1995 Barrett swore he wrote the diary at his dictation to his wife; his solicitor repudiated the affidavit and Barrett then withdrew the repudiation.[1][2][3][4][5]

Assumption records

• The diary is a genuine 1888–89 document written by James Maybrick.

Bottom line

Review