+--Robert L. Klawonn  (5 Feb 1928-30 Jan 2004)
+--David L. Klawonn  (15 Feb 1953-9 Jun 2016)
|  |                    +--Leopold Gütermann  (ABT. 1675-BEF. 1736)
|  |                 +--Johannes Gütermann  (ABT. 1705-)
|  |                 |  +-- (Unknown) 
|  |              +--Andreas Gütermann  (Aug 1736-)
|  |              |  +--Elisabeth Niclas 
|  |           +--Johann "Michael" Michaele Gütermann  (22 Feb 1766-14 Jun 1836)
|  |           |  +--Catharina Schaid  (ABT. 1740-)
|  |        +--Georg "Michael" Michaelis Gütermann  (29 Jun 1805-BEF. 10 Mar 1862)
|  |        |  +--Anna Maria Stein  (17 Feb 1771-3 Aug 1827)
|  |     +--Daniel "Dan" Guetermann  (8 Dec 1843-6 Oct 1925)
|  |     |  +--Maria Appolonia Becky  (15 Oct 1805-18 Aug 1882)
|  |  +--John "Dan" Daniel Guetterman  (1 Aug 1881-15 Jan 1970)
|  |  |  +--Anna Julianna Meyer  (6 Jul 1863-21 May 1892)
|  +--Mary Gabrielle Guetterman  (31 Jan 1924-22 Jun 2018)
|     +--Catherine O'Rourke  (1885-Jan 1970)
Albert Klawonn 
+--Mary Neff