William Haehn - line 69

Source - Year: 1900; Census Place: Stacyville, Mitchell, Iowa; Roll: 448; Page: 6B; Enumeration District: 121; FHL microfilm: 1240448.

Source - World War I Draft Registration Cards, 1917-1918; Registration Location: Minneapolis, Hennepin, Minnesota; Roll: 1675615; Draft Board: 5.

William Haehn - line 92

Source - Year: 1920; Census Place: Davenport Ward 2, Scott, Iowa; Roll: T625_512; Page: 4B; Enumeration District: 149; Image: 628.

William Haehn - line 85

Source - Year: 1925; Iowa State Census Collection, 1836-1925; Census Place: Davenport Ward 6, Scott, Iowa; Roll: IA1925_1938; Image: 8

William Haehn - line 85

Source - Year: 1925; Iowa State Census Collection, 1836-1925; Census Place: Davenport Ward 6, Scott, Iowa; Roll: IA1925_1938; Image: 9

William Haehn - line 52

Source - Year: 1930; Census Place: Davenport, Scott, Iowa; Roll: 682; Page: 2B; Enumeration District: 44; Image: 262.0; FHL microfilm: 2340417.