The census does not give unit letters, so with no continuing occupants, it is not possible to determine, which family occupied 336A or 336B in 1930.² The occupants of 336B Plaza Road North were
     in 1930: Wm G Harvey¹
     in 1931: William J Purcell¹
     in 1933: Milton E Sylvester³
     in 1935: Joseph J Carroll⁴
     in 1937: W. H. Stubblebine⁵
     in 1939: Baird F. West⁶
     and in 1941: F. J. Manniello.⁷

Wm G Harvey was born in 1890 in Illinois.⁸ He married Florence in 1918.⁸ Wm G Harvey appeared on the 1930 Census as the head of household at 336 Plaza Road North, with Florence as wife.⁸ The monthly rent was $58.-.⁸ Wm G Harvey was a credit manager (silk).⁸ He owned a radio in 1930.⁸ Wm G Harvey was a Veteran of the World War.⁸ Wm and Florence moved before 1931 away from Radburn, as there was no entry in the directory.¹

New York Times, 6 May 1931
     John W Purcell of Washington leased a house in Radburn from the City Housing Corporation.⁹

William J Purcell was born in 1890 in New York.¹⁰ He married Kathryn M in 1927.^1,10 William J Purcell was a coffee salesman, broker in New York.^1,10,3 William and his wife Kathryn had a daughter Jane.¹⁰ William J Purcell moved before 1933 from 336B Plaza Road North to 19 Reading Terrace.³

Milton E Sylvester married Mary H.³ Milton E Sylvester was a supervisor in New York.³ Milton E Sylvester moved before 1935 away from Radburn, as there was no longer an entry in the directory.⁴

Joseph J Carroll was born in 1900 in New Jersey.¹¹ He married Gertrude in 1923.¹¹ Joseph J Carroll was a silk dyer in Paterson. In 1935 he worked in Easton, PA.^11,1,3 He owned a radio in 1930.¹¹ Joseph J Carroll and Gertrude Carroll moved before 1933 from 201-B6 Abbott Road to Ridgewood but before 1935 they moved back to Radburn to 336B Plaza Road North.³ Joseph J Carroll and Gertrude Carroll moved before 1933 to Easton, Pennsylvania.⁵