St. Gabriel's Church was located at 308 E. 37th St. in Manhattan, NY.
It was founded in 1859 but construction was delayed by the Civil War until began in 1864. It was demolished 1939 as the neighborhood made way for the Queens Midtown Tunnel.
An external photo of the church can be found at the Digital Murray Hill site.
More information on its history can be found in The Catholic Church in the United States of America, published in 1914 and now available on Google Books.
This internal image is from that book, which is now out of copyright.
My grandfather John Tierney was baptized here in 1892, as were his older sisters Margaret and Annie, according to the church records. These records are now available at the Church of St. Stephen.