William Francis Hennessey II
On the New York attorney register since 2005 · office in New York, NY
PlainAttorney’s reading of the public register file, not a court record.
- Registration No.
- 4307138
- Admitted
- 2005 · Second Department
- Status
- Currently registered
- Next registration
- Dec 2027
William Francis Hennessey II is currently registered on the New York attorney register file of Sep 29, 2026. Admitted in 2005 in the Second Department, with an office in New York, NY; next registration due Dec 2027. The status is the same in all 3 files we hold.
What this status means on the register
On the register, “Currently registered” means William Francis Hennessey II has filed the biennial registration the court system requires; the next one is due in Dec 2027.
- Currently registered unchanged
- Currently registered unchanged
- Currently registered the first file we hold
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026; the Jul 3, 2026 and Aug 6, 2026 files for the history.
Others who list this employer on the register
73 other attorneys list Thompson Coburn LLP or one of its other names as their employer on the register; 32 of them were admitted before 2005, and 46 of the 74 give an office in New York, NY. The 5 whose admission is closest to 2005, earliest first:
| Attorney | Admitted | Status |
|---|---|---|
| Nicole Salah Allen | 2005 | Currently registered |
| Aaron M Delong | 2005 | Currently registered |
| Emily Wang Murphy | 2005 | Currently registered |
| Christopher Thomas Murray | 2006 | Currently registered |
| Lukasz Sosnicki | 2006 | Due to re‑register |
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026; employer spellings merged (methodology).
Where this record sits on the register
William Francis Hennessey II studied at Northwestern University Pritzker School of Law (the register spells it “NORTHWESTERN UNIVERSITY”). 758 of its 3,128 living graduates on the register were admitted in the 2000s, as William Francis Hennessey II was.
- Same law school
- 3,128living graduates; 87.0% registered (current or due), against 87.1% overall
- Office in New York, NY
- 93,604living registrants
Of the 93,604 living registrants with an office in New York, NY, 36,704 were admitted before 2005 and 54,903 after.
Source: NY Office of Court Administration, attorney registration file (data.ny.gov, dataset eqw2-r5nb), downloaded Sep 29, 2026; living registrants only.
Questions this record leads to
- Everyone who lists Thompson Coburn LLP74 on the register, 32 of the others admitted before 2005; 46 of the 74 give an office in New York, NY.
- Northwestern University Pritzker School of Law graduates on the register3,128 living, 87.0% registered.
- Attorneys with an office in New York, NY93,604 living registrants give an office there.
- New York County’s registered bar75,989 currently registered, 46.63 per 1,000 residents.
- Admitted in 20058,525 people admitted in 2005 are on the register, 2,341 of them through the Second Department.
- Every registration that reads “Currently registered”286,911 on the register file of Sep 29, 2026, by decade of admission.
- What a New York lawyer may chargeThe court rules on fees, retainers and fee disputes, each cited.
How to confirm it officially
For a statement of William Francis Hennessey II’s standing, contact the Attorney Registration Unit of the NY Office of Court Administration (nycourts.gov/attorneys), or ask the Appellate Division, Second Department, which admitted William Francis Hennessey II in 2005. A complaint about this attorney would go to the First Department’s grievance committee, which covers New York County, where the register places the office.
This page reads the register file of Sep 29, 2026, and the court system’s own search can be newer; the register shows only the current value, so a suspension that ended before the files we hold, or a censure, leaves no trace here (Appellate Division decisions are published through the court system’s Law Reporting Bureau).