Farber/Kratochvil/Kraig Continued

Okay, for some reason blogger messed up after that census *shrugs*.
So then apparently Emma married William Kratochvil/Kraig in 1922, and THIS is their family
(1930 Census)
Okay blogger is being stupid, anyway, Ramona is my cousins grandmother, I have talked to the new cousin, and she says that she found David in the 1930 census, THIS is that census:

Anthony Farber	41
Anna Farber	33
Ada Farber	9
Norma Farber	6
Nicholas Farber	69
David Farber	14

 I am ON the hunt!!
this is David's SSD info:

Name:	David Farber
SSN:	120-07-xxxx
Last Residence:	21224  Baltimore, Baltimore City, Maryland, United States of America
Born:	27 Sep 1915
Died:	Nov 1986
State (Year) SSN issued:	New York (Before 1951)

So as we have both deduced, he lived with his grandfather OR uncle, but why?

Name:	William Kraig
Birth Year:	abt 1892
Birthplace:	New York
Home in 1930:	Brooklyn, Kings, New York View Map
Relation to Head of House:	Head
Spouse's Name:	Emma Kraig
Occupation: Education: Military Service: Rent/home value: Age at first marriage: Parents' birthplace:	View image
Neighbors:	View others on page
Household Members:	Name Age William Kraig 38 Emma Kraig 37 Ajax C Kraig 7 Rosemary Kraig 5 Emerson D Kraig 3 9/12 Ramona Kraig 2 1/12