New York attorney record · Judicial Dept 1

Mark Biddison

Duke alumna, admitted to the New York bar in 1955. A half-lifetime's worth of status, address, and registration history on this record come straight from the NY Office of Court Administration.

1955
Admitted
71
Years in bar
1571082
NY reg #

The record in one line

Mark Biddison's New York bar registration is a historical record only, listed with status "Deceased", on record since 1955 - this entry does not reflect an active practice.

71 yrs
since first admission to the bar
Deceased
current bar status: "Deceased"
Law school
Duke

Data updated May 2026

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Bar status
Deceased
deceased
Current registration status per NY Office of Court Administration
Year admitted
1955
71 years
Year of first admission to the New York bar
Law school
Duke
62.2% active rate
Law school attended, with active-bar rate where available
Registration
1571082
NY registration #
Official NY OCA attorney registration number

What this profile tells you

Bar status & tenure

Mark Biddison is registered as bar number 1571082 with the New York bar authority, carrying a current status of "Deceased", a historical record only. Registration is recorded within Judicial Department 1, the appellate division overseeing this attorney's home district.

Practice context & education

Even after 71 years on the register, no firm or business address is on file for this attorney. Educational background: DUKE (389 registered alumni).

State context & due diligence

This is a historical New York bar record; it does not count toward the state's currently-active cohort shown below.

How Mark compares to fellow Duke alumni

Among the 274 Duke graduates in the New York register, Mark Biddison is longer-tenured than 99% - a school-cohort view of experience, alongside the statewide one above.

71 years vs. Duke alumni

Years since admission - 274 NY-registered alumni of this school

71 Top 1% higher than 99% of 274 fellow alumni

This attorney 5 40 every registered alum of this school, bucketed by value

Each bar is a band; taller bars hold more fellow alumni. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source NY Office of Court Administration, Attorney Registration · May 2026

Duke's active-bar rate

Of Duke's 389 alumni in the New York register, 62.2% currently hold "Currently registered" status, below the statewide average.

Duke alumni, active-bar rate

0%100%New York avg66%62.2%
Duke alumni, active-bar rate

The 1955 admission class today

Of the 1,442 attorneys admitted to the New York bar in 1955, 2.2% are still "Currently registered" today, below the statewide average across all admission years.

-20%0%20%40%60%80% Statewide, all years1955 class 66.2% 2.2% ▼ -96.7%
Bar retention: statewide average vs. the 1955 admission class

Professional Details

Status
Deceased
Registration Number
1571082
Year Admitted
1955 (71 yrs · veteran)
Judicial Department
1

Location & Contact

Education

DUKE

Status Distribution Across the New York Bar

Mark Biddison's current status, "Deceased", places this record outside the 66.2% of the 429,620-attorney New York register currently marked active.

Full statewide breakdown & source note
Cohort Attorneys Share Profile relevance
Active in good standing 284,296
66.2%
This attorney is outside this cohort
Other / inactive / discipline 145,324
33.8%
Verify status before engaging
Total registered 429,620 100.0% Full New York bar register

Source: NY Office of Court Administration, Attorney Registrations. Status counts reflect the latest reporting cycle. Bar status confirms registration only; it does not imply competence, specialty fit, or freedom from complaints.

Before you rely on this record

Mark Biddison's record is historical. Confirm you are researching the correct person before drawing any conclusion from this listing.

Frequently Asked Questions

Where is Mark Biddison licensed?

Mark Biddison is licensed to practice law in New York.

When was Mark Biddison admitted to the bar?

Mark Biddison's admission to the New York bar dates back to 1955.

Where did Mark Biddison go to law school?

Mark Biddison attended DUKE.

Is Mark Biddison in good standing?

Mark Biddison's record is historical only ("Deceased"), it predates any current-standing question.

Sourced from the NY Office of Court Administration, informational only, not legal advice. Full disclosure.