The Ancestry hint read as follows:
New York, New York, Marriage Index 1866-1937 about Patrick F Bowe
Name: Patrick F Bowe
Marriage Date: 21 Jun 1903
Marriage Place: Manhattan, New York, USA
Spouse: Mary Powers
Certificate Number: 12755
Given the certificate number, I could have ordered the marriage record from NYC directly via http://www.nyc.gov/dorforms/marriagecert.jsp . Once nice thing about this site is it lets you use a credit card (unlike some other nyc sites which want money orders, grrr).
But... last summer I made a research run the Family History Library in Utah. While there I obtained the marriage record from their files. Note the parents names, church address, and current address in the records. Good stuff...
Marriage license, state of new york, borough of manhattan
received June 27, 1903
Patrick F Bowe
Mary C Powers
Witness: WJ Veale
witness: Florence McKenna
Performed by M. Cunniff
date: June 21 1903
Patrick F Bowe of 519 East 81st, age 25, white single, born in Ireland to Thomas Bowe and Mary A Flynn, first marriage
Mary C Powers of 519 East 81st, age 23, white, sing,e, from Ireland, born to James Bowe and Mary Halley, first marriage
Official RC Clerygyman Michael Hunniff of 413 East 79th Street [St Monica's Roman Catholic Church]
Note the address given is for the marriage - 413 East 79th - is for St Monica's Roman Catholic Church in NYC. The church is still there, and you can order records via http://www.stmonicanyc.org/record-search .
Next step, sending a check to St Monica's! I'll keep you posted. This will be my first time ordering documents from a church.