Since the 1910 & 1915 censuses I'd originally requested help in locating have been found, I'm modifying this original post to request a much smaller span of years for the look-up request.
I now know in 1910 the family I'm researching was in Manhattan and by June 1915 they were in Mount Vernon, Westchester Co. See info below for family name variations & locations.
I'm hoping someone with access to Staten Island directories can start with the 1918 SI directory & work back towards 1915 looking for Rocco Tortorella so I can discover when in those 3 years he & his family arrived on Staten Island.
From the original post....
In my GANSCHOW branch I'm looking in the directories for Rocco TORTORELLA & wife Vincenza DIMAGGIO, the parents of Rose GANSCHOW nee TORTORELLA.
Rocco & family have been very difficult to find in the censuses & other records due to a more than usual number of variations in the spelling of the surname to the extent that I'm not even sure TORTORELLA is the correct name.
However, TORTORELLA is what Rocco 's daughter Rose entered for her maiden name on her marriage found in the NYC Vitals via Steve Morse's One Step site when I searched for a marriage for of Theodore GANSCHOW to Rose and it's what Rose reported when she applied for her Soc. Sec. number so I'm considering that the spelling Rose used is the correct version of the surname.
I have so far encountered the name as:
FORTORELLA - 1905 marriage in Manhattan of Rocco to wife Vincenza DiMaggio - Steve Morse One Step NYC Vitals
FORTORELI - 1910 census 628 East 14th St, Manhattan
JORTORELLI, TORTONLLI - 1915 NY State census. The name in the images appears to be close to correct as TORTORELLI but Ancestry indexed Rocco & Vincenza (aka Maria on this census) as "JORTORELLI" and then on the next page of the census for the kids, Ancestry indexed the name as "TORTONLLI".
In 1915 the family was in Westchester Co. at 49 & 1/2 West 3rd St. Mount Vernon.
HORTORELLO - Rocco's WW I Draft Card, Sept 1918, 188 Filmore St, New Brighton
SORTORELLO - Death Richmond Co May 1919 of Rocco - Steve Morse One Step NYC Vitals
TORTORELLA - 1920 Federal & 1925 NY State censuses. 1920 - 21 Stanley Ave. head of household is widow Vincenza's mother, Teresa DiMaggio / 1925 - Still at 21 Stanley Ave. only now Vincenza is the head & the town is given as New Brighton.
And, just to spice things up, after 1925 Vincenza started using her maiden name so the 1930 & 1940 census entries are under DIMAGGIO.
The family grouping of Rocco & Vincenza was:
Rocco b. 10 Dec 1880 Italy
Vincenza b. abt. 1886 Italy
Mary b. abt. 1907 Manhattan
Joseph b. abt. 1909 Manhattan
William Victor b. abt. 1911 either Manhattan or Mount Vernon, Westchester
Teresa aka Tessie b. abt. 1913 either Manhattan or Mount Vernon, Westchester
Rose b. 11 Mar 1914 either Manhattan or Mount Vernon, Westchester
Minnie aka Mamie b. abt. 1915 either Mount Vernon, Westchester or SI
Frank b. 17 Jan 1916 either Mount Vernon, Westchester
I hope someone can find Rocco in the 1915 - 1918 Staten Island directories. Thanks.