| Sources  | 
- [S30]  1910 US Federal Census, (www.ancestry.com).
 
Name: William Gustke Age in 1910: 31 Estimated birth year: abt 1879 Birthplace: Germany Relation to Head of House: Nephew Father's Birth Place: Germany Mother's Birth Place: Germany Home in 1910: Rochester Ward 8, Monroe, New York Marital Status: Married Race: White Gender: Male 
 
  
- [S24]  1920 US Federal Census, (www.ancestry.com). 
 
  
- [S25]  1930 US Federal Census, (www.ancestry.com).
 
CENSUS: 
1930: 
lived with brother-in-laws, Louis and William Radtke 
Name: William Gustke Age: 52 years Estimated birth year: 1877 Birthplace: Germany Relation to Head-of-house: Brother-in-law Race: White Home in 1930: Rochester, Monroe, New York  Image Source: Year: 1930; Census Place: Rochester, Monroe, New York; Roll: T626_1449; Page: 3B; Enumeration District: 32; Image: 0536. 
 
  
- [S891]  World War I Draft Registration Cards, 1917 - 1918, (www.ancestry.com).
 
World War I Draft Registration Cards, 1917-1918 
Name: William John Gustke City: Not Stated County: Monroe State: New York Birth Date: 16 Feb 1878 Race: White Roll: 1753845 DraftBoard: 3 
 
  
- [S888]  Social Security Death Index 1935 - Current, (www.ancestry.com).
 
Social Security Death Index 
Name: William Gustke SSN: 104-10-6740 Last Residence: New York Born: 16 Feb 1878 Died: Aug 1964 State (Year) SSN issued: New York (Before 1951 ) 
  
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