John Poppke family in Brooklyn, NY (unrelated, so far)

Hi, I’m going to be researching some unrelated Poppke families. I’m starting with this one because;
1. The guys were iron workers, similar to my immediate family.
2. I found a great will from 1912 for the family.
3. One of the men in the family was living in South Dakota (which is close to North Dakota).

The first two pieces I’m starting with are;
1. A will showing members of the family at various places in Brooklyn, NY, and elsewhere. The addresses listed were current on 3 Jul 1912.
2. The 1910 Federal Census for Brooklyn.

The will of John Poppke lists his son, John Poppke, living at 980 Greene Avenue in Brooklyn, NY.
6 July 1912
Wills Filed
John POPPKE, who died Dec. 13, 1911, left a personal estate of
$1,400. By will of April 27, 1891, all of the testator’s interest in
the firm of Poppke & Son, 21 Lawton street, is bequeathed to his son,
John F. POPPKE, of 980 Greene avenue, who is also named as executor.
The residue of the estate goes to his sons, the Rev. Herman POPPKE, of
Shoemaker, Tripp County, South Dakota; Edward POPPKE, of Three Bridges,
Hunterdon County, N.J.; Gustav W. POPPKE, of 343 Central avenue,
Brooklyn, and Emil POPPKE of 244 Kings Highway.

To tie the 1910 Census to a place, I found that Greene Ave is in Ward 25, Enumeration District 684:

Based solely on the common place in Brooklyn, with no common dates, I’m going to connect these John Poppke in the will to this John Poppke;

In the 1910 Census;
Name: John F Poppke
Event Place: Brooklyn Ward 25, Kings, New York, United States
District: 684
Gender: Male
Age: 56
Marital Status: Married
Race: White
Race (Original): White
Relationship to Head of Household: Head
Relationship to Head of Household (Original): Head
Birth Year (Estimated): 1854
Birthplace: Germany
Immigration Year: 1884
Father’s Birthplace: Germany
Mother’s Birthplace: Germany
Household Gender Age Birthplace
Head John F Poppke M 56 Germany
Wife Mary Poppke F 48 Germany
Son Arthur Poppke M 24 New York
Daughter Lillie Poppke F 20 New York
Son Harry Poppke M 16 New York
Daughter Edna Poppke F 15 New York
Son John Poppke M 7 New York
Servant Alvina Bartell F 21 Germany

“United States Census, 1910,” index and images, FamilySearch ( : accessed 09 Mar 2014), John F Poppke, Brooklyn Ward 25, Kings, New York, United States; citing sheet , family 46, NARA microfilm publication T624, FHL microfilm 1374986.