Dr. J. Horwitz
(
 = Descendancy chart to this point, 
 = Expand, 
 = Collapse)
- 1  Dr. J. Horwitz [1]  b. Abt 1783 d. 1852
  Deborah Andrews  b. 8 Jan 1800 d. 4 Aug 1895
- 2  Orville Horwitz [1.1]   
 b. 22 Dec 1817 d. 30 Jul 1877
                    
  Maria Rives Gross  b. 10 Apr 1839 d. 25 Aug 1914
- 3  Florence Gross Horwitz [1.1.1]   
 b. 2 Oct 1862 d. 7 Sep 1918
                                    - +  Edward Key  b. 28 Mar 1850 d. 11 Apr 1915
 - +  Count Rene San di Gallo  b. Unknown d. Aft 1919
 
 - +  Edward Key  b. 28 Mar 1850 d. 11 Apr 1915
 - 3  Louisa Horwitz [1.1.2]   
 b. 24 Jan 1864 d. 20 Jan 1919
                                    
  William Christian Bullitt  b. 18 Jun 1856 d. 20 Mar 1914
- 4  William Christian Bullitt [1.1.2.1]   
 b. 25 Jan 1891 d. 15 Feb 1967
                                                 
- 4  William Christian Bullitt [1.1.2.1]   
 
 - 3  Alice Horwitz [1.1.3]   
 b. Abt 1867 d. Aft 1919
                                    - +  Count Unknown Andreozzi-Dernini  b. Unknown d. Unknown
 
 - +  Count Unknown Andreozzi-Dernini  b. Unknown d. Unknown
 - 3  Haller Gross Horwitz [1.1.4]   
 b. 11 Dec 1872 d. 2 Feb 1932
                                    
  Claude Ashley Charles Ponsonby  b. 16 Aug 1859 d. 3 Feb 1935
- 4  Harold Ashley Curzon Ponsonby [1.1.4.1]   
 b. 6 Oct 1891 d. 22 Jul 1950
[ =>]                                                 - 4  Eric Ashley Claude Ponsonby [1.1.4.2]   
 b. 28 Apr 1893 d. 17 Oct 1894
                                                 - 4  Moyra Blanche May Diana Ponsonby [1.1.4.3]   
 b. 3 Dec 1901 d. 15 Mar 1977
                                                 
- 4  Harold Ashley Curzon Ponsonby [1.1.4.1]   
 - +  Lt. Col. Ronald George Brooke, C.B.E., D.S.O.  b. 25 Sep 1866 d. 28 Nov 1930
 
 
- 3  Florence Gross Horwitz [1.1.1]   
 
 - 2  Dr. Phineas J. Horwitz [1.2]   
 b. 3 Mar 1822 d. 28 Sep 1904
                    
  Caroline Norris  b. Unknown d. Aft 1868
- 3  George Quintard Horwitz [1.2.1]   
 b. 3 Feb 1868 d. 14 Dec 1916
                                    
  Maj. Marian Newhall  b. 13 Aug 1880 d. 8 May 1932
- 4  Dr. Peter Orville Horwitz [1.2.1.1]   
 b. Abt 1909 d. 28 Jan 2003
[ =>]                                                 
- 4  Dr. Peter Orville Horwitz [1.2.1.1]   
 
 
- 3  George Quintard Horwitz [1.2.1]   
 
 - 2  Theophilus Byron Horwitz [1.3]   
 b. Abt 1820 d. 5 Apr 1895
                 - 2  Benjamin F. Horwitz [1.4]   
 b. 16 Mar 1831 d. 27 Apr 1899
                    
  Louisa Gross  b. Abt 1841 d. 1 Jun 1907
- 3  Eugene Horwitz [1.4.1]   
 b. 7 Dec 1863 d. 10 Nov 1893
                                 - 3  S. Gross Horwitz [1.4.2]   
 b. Abt 1864 d. Aft 1913
                                 - 3  Adele Horwitz [1.4.3]   
 b. Abt 1870 d. Aft 1907
                                    - +  Francis Bowes Stevens  b. Abt 1868 d. 6 Sep 1905
 - +  Beverley W. Robinson  b. Unknown d. Aft 1907
 
 - +  Francis Bowes Stevens  b. Abt 1868 d. 6 Sep 1905
 
- 3  Eugene Horwitz [1.4.1]   
 
 
- 2  Orville Horwitz [1.1]   
 
 
