Updated October 2005
Once again I've learned a lesson...you cannot assume anything about this Knapp family. The only wife of Joseph F. Knapp (1892-1952) nickname Dodi, I have ever read about or thought I read about , was a woman named Marion most likely with her maiden name being H-------? Her name appears on the deed in 1940 as a witness to the sale of the mansion as Marion E. Knapp but in all other references including Dodi's obit as Marion H. and Metropolitan Life Insurance's archives as Marion (H?)....in my brief converstion with Dodi's grand niece two years ago, she mentioned that when Dodi died (she was around 6 years old) that she did not know what became of Marion. Well my research turned up that by July of 1954 she re married a man named Stanley L. Conley in NYC and sold the Knapp home "Cove Point" in Hampton Bays
Actually I unkowingly first read about Dodi's FIRST wife last August when I first saw the 1930 census on him taken at Gramercy Place (near 23rd St and Park Ave) in NYC.
Since this page was originaly posted I have found evidence of Gertrude & Joseph Knapp being married as early as 1926 .... for details see "Exhibit A"
AND NOW WE HAVE THE ANSWER!!
In October of 2005 while browsing the microfilm archives
of The Patchogue Advance in The Patchogue Medford Library I Found This!
So now we know when Joseph F. Knapp married Gertrude O'Brien,
We Also Know
WHERE
In his Mastic Beach Mansion
They divorced in 1938 & Gertrude moved to New Orleans. She passed away in 1959
In November Of 2010 I Was Contacted By Dr Jolie Harris A Member Of Her Family
Who Supplied me with her birth certificate Sept 13, 1894 and this fantastic photo of her home in Mastic circa 1929