Katharine Lawrence Putnam Lowell was born 5 December 1890 in Boston, Suffolk County, Massachusetts, United States to William Lowell Putnam (1861-1924) and Elizabeth Lowell (1862-1935) and died 6 June 1983 Boston, Suffolk County, Massachusetts, United States of unspecified causes. She married Harvey Hollister Bundy (1888-1963) 17 April 1915 .
Children
| Name | Birth | Death | Joined with |
| Harvey Hollister Bundy (1916-1997) | |||
| William Putnam Bundy (1917-2000) | 24 September 1917 Washington, District of Columbia, United States | 6 October 2000 Princeton, Mercer County, New Jersey, United States | Mary Eleanor Acheson (1924-) |
| McGeorge Bundy (1919-1996) | 30 March 1919 Boston, Suffolk County, Massachusetts, United States | 16 September 1996 Boston, Suffolk County, Massachusetts, United States | Mary Buckminister Lothrop (1925-1996) |
| Harriet Lowell Bundy (1920-2008) | |||
| Katherine Lawrence Bundy (1923-2014) | 9 September 1923 Boston, Suffolk County, Massachusetts, United States | 26 May 2014 Lexington, Middlesex County, Massachusetts, United States | Hugh Auchincloss (1915-1998) |
Siblings
| Name | Birth | Death | Joined with |
| George Putnam (1889-1960) | |||
| Katharine Lawrence Putnam (1890-1983) | 5 December 1890 Boston, Suffolk County, Massachusetts, United States | 6 June 1983 Boston, Suffolk County, Massachusetts, United States | Harvey Hollister Bundy (1888-1963) |
| Roger Lowell Putnam (1893-) | |||
| Marriett Lowell Putnam (1897-1900) | |||
| Augustus Lowell Putnam (1899-1947) | |||