| Sources  | 
- [S19]  1900 US Federal Census, (www.ancestry.com).
 
Name: Irene C Ehrstein Home in 1900: Rochester Ward 1, Monroe, New York Age: 7 Estimated birth year: 1893 Birthplace: New York Race: White Relationship to head-of-house: Daughter  Image source: Year: 1900; Census Place: Rochester Ward 1, Monroe, New York; Roll: T623 1073; Page: 1A; Enumeration District: 30. 
 
  
- [S30]  1910 US Federal Census, (www.ancestry.com). 
 
  
- [S24]  1920 US Federal Census, (www.ancestry.com).
 
Name: Irene Boldt Age: 26 years Estimated birth year: 1893 Birthplace: New York Race: White Home in 1920: Rochester, Monroe, New York  Roll: T625_1125 Page: 5A ED: 249 Image: 0855 
 
  
- [S25]  1930 US Federal Census, (www.ancestry.com).
 
Name: Irene Boldt Age: 36 years Estimated birth year: 1893 Relation to Head-of-house: Wife Home in 1930: Rochester, Monroe, New York Image Source: Year: 1930; Census Place: Rochester, Monroe, New York; Roll: T626_1450; Page: 9A; Enumeration District: 61; Image: 0785. 
  
  |