The Family Search website has greatly improved.

Can see the original Certificate of Naturalization - for George Powell TRIGG - 5 May 1877

says be was born 13 June 1827 in Gloucestershire.

and also

Superior Court, New York County - 15 June 1857 (date of Naturalization)

For George P TRIGG - 43 Dominick Street, N.Y.C.

and occupation of witness: Richard R ROE - who seems to have married George's sister.

---

Ancestry - can't open

New York City, Complete Marriage Index 1600s - 1800s

Richard R ROE
Spouse: Maria T TRIGG

However, by Googling

Index to Marriages and Deaths in the New York Herald: 1835-1855

https://books.google.co.uk

24 June 1852

George P TRIGG - Marian L NEWHOUSE - New York City 24 June 1852

and

15 March 1849

Maria T TRIGG -
Spouse: Richard R ROE - again New York City

---

Googling - can't see to find this as yet
.... family search

New York Passenger Lists 1820-1891

Mary Powell. 1791, children (9) . Ann Trigg 1808, Eliza Trigg 1810, Bia Trigg ..... George Powell Trigg