New York attorney record · Judicial Dept 3
Henry Clay Quillen
Yale alumna, admitted to the New York bar in 2008, registered office in Portsmouth, NH. This established record's status, address, and registration history come straight from the NY Office of Court Administration.
- 2008
- Admitted
- 18
- Years in bar
- 4579207
- NY reg #
The record in one line
Henry Clay Quillen has held an active New York bar license for 18 years - admitted in 2008, longer-tenured than 38% of the state's currently-active attorneys.
- 18 yrs
- in active practice since admission
- Active
- current bar status: "Currently registered"
- #27 of 36
- by tenure in Portsmouth office peers
- Law school
- Yale
Data updated September 2026
What this profile tells you
Bar status & tenure
Henry Clay Quillen carries New York bar registration 4579207, an established, active practitioner in good standing. Registration is recorded within Judicial Department 3, the appellate division overseeing this attorney's home district.
Practice context & education
Practice address is listed under Whatley Kallas LLP, located in Portsmouth, NH, ZIP 03801. 1 other attorney shares this firm affiliation in the registry. Educational background: YALE.
State context & due diligence
With an established practice on record, Henry Clay Quillen remains inside the New York bar's active cohort - see below for how that share of the register compares.
Experience vs. the active New York bar
Henry Clay Quillen was admitted in 2008, giving 18 years on the New York register.
18 years on the New York bar
Years since admission, all currently-active NY attorneys
18 Top 62% higher than 38% of 290,787 active NY attorneys
Each bar is a band; taller bars hold more active NY attorneys. 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 · September 2026
Tenure among Portsmouth, NH office peers
In the small Portsmouth, NH cohort (36 with admission years), Henry Clay Quillen ranks #27 by tenure. See the Portsmouth attorney directory .
- Local rank
- #27
- City cohort
- 36
- Local percentile
- 72nd
- Admitted
- 2008
Nearest tenure peers in Portsmouth
- Mark Byrne Rosen admitted 2008 · 18 yr
- Kimberly Mary Rosensteel Sullivan admitted 2009 · 17 yr
- Jennifer Lauren O'Connell admitted 2006 · 20 yr
- Claudette Moretto Barker admitted 2005 · 21 yr
How local rank is computed
Rank uses years since NY-bar admission among non-deceased registry rows that list the same office city and state, a local placement, not a statewide claim. Source: NY Office of Court Administration Attorney Registration · as of September 2026. Derived local rank, not published upstream.
How Henry compares to fellow Yale alumni
Among the 1,092 Yale graduates in the New York register, Henry Clay Quillen is longer-tenured than 7%.
18 years vs. Yale alumni
Years since admission - 1,092 NY-registered alumni of this school
18 Top 93% higher than 7% of 1,092 fellow alumni
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 · September 2026
The 2008 admission class today
Of the 9,683 attorneys admitted to the New York bar in 2008, 68.4% are still "Currently registered" today, above the statewide average across all admission years.
Professional Details
- Status
- Currently registered
- Registration Number
- 4579207
- Year Admitted
- 2008 (18 yrs · senior)
- Judicial Department
- 3
- Next Registration
- Feb 2028
Location & Contact
- Company
- Whatley Kallas LLP
- City
- Portsmouth, NH
- ZIP Code
- 03801
- Phone
- (603) 294-1591
Education
YALE
Status Distribution Across the New York Bar
Henry Clay Quillen's current status, "Currently registered", places this attorney in the 67.2% of the 432,625-attorney New York register currently marked active.
Full statewide breakdown & source note
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.
Same firm affiliation: Whatley Kallas LLP
Other NY-registered attorneys who share this firm name on the OCA register (not a geographic peer set).
View all attorneys at this firm →Near-tenure Yale alumni
Fellow alumni on the NY register whose admission year is closest to 2008 (excluding same-firm colleagues above).
Same admission year (2008), other cities
NY-registered attorneys admitted in 2008 whose listed office city differs from Portsmouth, a vintage cohort, not a neighborhood list.
Nationwide attorneys with similar admission year or city registry density
Two non-geo peer axes for Henry Clay Quillen: closest NY bar admission year outside NH, and closest out-of-state office cities by how many NY-registered attorneys they list (~37 here). Distinct from same-firm, fellow-alumni, and same-year other-city strips above.
Similar admission year (~2008)
Counts come from the NY State Office of Court Administration registration extract; peers are not a competence or practice-area ranking.
Verify This Attorney
Verify on NY Courts Attorney SearchNearby Attorneys in Portsmouth, NH
Compare credentials side-by-side
Compare Henry Clay Quillen with similar attorneys in Portsmouth.
Compare attorneys →Before you rely on this record
Henry Clay Quillen's "Currently registered" listing confirms bar standing only, it is a registration fact to verify, not a verdict on quality or competence.
Frequently Asked Questions
Where is Henry Quillen licensed?
Henry Quillen is licensed to practice law in New York.
When was Henry Clay Quillen admitted to the bar?
Henry Clay Quillen was admitted to the bar in 2008.
Where did Henry Clay Quillen go to law school?
Henry Clay Quillen attended YALE.
What company does Henry Clay Quillen work for?
Henry Clay Quillen is associated with Whatley Kallas LLP in Portsmouth, NH.
Is Henry Clay Quillen in good standing?
Yes, Henry Clay Quillen holds active bar status ("Currently registered").
Cite this page & disclosure
Sourced from the NY Office of Court Administration, informational only, not legal advice. Full disclosure.
Read our methodology - how this data is sourced, computed, and verified.