Mary Blau
- Yes, date unknown(
= Descendancy chart to this point, 
= Expand, 
= Collapse)
- 1 Mary Blau [1] d. Yes, date unknown
- John Knechtenhofer d. Yes, date unknown
- 2 Frederick John Knechtenhofer [1.1] b. 25 Mar 1873 d. 14 Nov 1922
- Susanna "Susie" Ogie b. 11 Dec 1877 d. 11 Jun 1923
- 3 William Karl Knechtenhofer [1.1.1] b. 28 Apr 1900 d. 7 Sep 1941
- Hazel M. Talbot d. Yes, date unknown
- 4 Doris M. Knechtenhofer [1.1.1.1] d. 2009
- 4 Robert "Bob" Knechtenhofer [1.1.1.2] b. 12 Jan 1929 d. 24 Oct 2023
[ =>]
- 4 William R. "Bill" Knechtenhofer [1.1.1.3] b. 9 Aug 1930 d. 2 Jul 2011
[ =>]
- 4 Doris M. Knechtenhofer [1.1.1.1]
- 3 Bertha Knechtenhofer [1.1.2] b. 13 Aug 1901 d. 19 Dec 1914
- 3 William Karl Knechtenhofer [1.1.1]
- 2 Frederick John Knechtenhofer [1.1]