A relatively simple timeline of major life events in the core Gilbreth family.
(Of course, nothing is really simple with fourteen people and thirteen weddings...)
Updated 10 Dec 2020
| 1868 | 7 July | Frank Bunker Gilbreth [Sr] born, Fairfield, Maine |
| 1878 | 24 May | Lillian [Evelyn] Moller Gilbreth born, Oakland, California |
| 1904 | 19 October | Frank Bunker Gilbreth [Sr] and Lillian [Evelyn] Moller Gilbreth marry in her family home in Oakland, California Couple returns to NYC to live in new Riverside Drive apartment with Martha Bunker Gilbreth and Caroline "Kit" Bunker |
| 1905 | 9 September | Anne Moller Gilbreth [Barney] born, NYC |
| 1906 | 13 December | Mary Elizabeth Gilbreth born, San Francisco |
| 1907 | October | Caroline "Kit" Bunker dies, Providence |
| 1908 | 5 April | Ernestine Moller Gilbreth [Carey] born, NYC |
| 1909 | September | Family moves to Plainfield, New Jersey |
| 5 November | Martha Bunker Gilbreth [Tallman] born, Plainfield | |
| 1911 | 17 March | Frank Bunker Gilbreth Jr born, Plainfield |
| 1912 | 31 January | Mary Elizabeth Gilbreth dies (age 5) |
| May | Family moves to Providence, Rhode Island | |
| 18 December | William Moller Gilbreth born, Providence | |
| Frank & Lillian Gilbreth begin management consulting | ||
| 1914 | 17 June | Lillian Moller Gilbreth [Jr] [Johnson] born, Providence |
| 1915 | ||
| June | Lillian [Evelyn] Moller Gilbreth receives Ph.D. from Brown University | |
| 13 September | Stillbirth of daughter (at 4-6 months), possibly due to a fall | |
| 1916 | ||
| 17 August | Frederick Moller Gilbreth born, Buttonwoods, Rhode Island | |
| 1917 | 17 September | Daniel Bunker Gilbreth born, Providence |
| 1918 | February-March | Frank Bunker Gilbreth [Sr] suffers severe wartime illness and heart damage |
| Early Summer | "The Shoe" cottage on Nantucket purchased | |
| 1919 | 29 May | John Moller Gilbreth born, Providence |
| November | Family moves to Montclair, New Jersey | |
| 1920 | 2 May | Martha Bunker Gilbreth dies in Montclair |
| 4 July | Robert Moller Gilbreth born, Nantucket Island | |
| 1922 | 22 June | Jane Moller Gilbreth [Heppes] born, Nantucket Island She would be the only one born in a hospital. |
| 1924 | 14 June 1924 | Frank Bunker Gilbreth [Sr] dies (age 55) |
| 1926 | 18 September | Anne Moller Gilbreth [Barney] marries Dr. Robert Barney |
| 1930 | 13 September | Ernestine Moller Gilbreth [Carey] marries Charles E. Carey |
| 1934 | 28 September | Frank Bunker Gilbreth Jr marries Elizabeth Cauthen [Gilbreth] |
| 1935 | 7 September | Lillian Moller Gilbreth [Johnson] marries Donald Dodge Johnson |
| 1936 | 24 April | William Moller Gilbreth marries Jean Irvin [Gilbreth] |
| 1940 | 8 June | Martha Bunker Gilbreth [Tallman] marries Richard Tallman |
| December | Daniel Bunker Gilbreth marries Irene Jensen [Gilbreth] | |
| 1943 | 13 August | Frederick Moller Gilbreth marries Jessie Tallman [Gilbreth] |
| 1944 | John Moller Gilbreth marries Dorothy Girvan [Gilbreth] | |
| 20 May | Jane Moller Gilbreth [Heppes] marries George Heppes | |
| 1945 | 25 August | Robert Moller Gilbreth marries Barbara Filer [Gilbreth] The couple would divorce in about 1972 |
| 1948 | Cheaper By The Dozen published | |
| 1950 | Belles On Their Toes published | |
| 1954 | 18 June | Elizabeth Cauthen [Gilbreth] dies (age 43) Charleston, South Carolina |
| 1955 | 4 June | Frank Bunker Gilbreth Jr marries Mary Pringle Manigault [Gilbreth] |
| 1968 | 15 November | Martha Bunker Gilbreth [Tallman] dies (age 59), Chehalis, Washington |
| 1972 | 2 January | Lillian [Evelyn] Moller Gilbreth dies (age 93), Phoenix, Arizona |
| 1987 | 16 February | Anne Moller Gilbreth [Barney] dies (age 81), Palo Alto, California |
| 1990 | 14 April | William Moller Gilbreth dies (age 77), Rough & Ready, California |
| 2001 | 18 February | Frank Bunker Gilbreth Jr dies (age 89), Charleston, South Carolina |
| 23 June | Lillian Moller Gilbreth [Jr] [Johnson] dies (age 87), Middletown, Connecticut | |
| 2002 | 25 December | John Moller Gilbreth dies (age 83), Caldwell, New Jersey |
| 2006 | 10 January | Jane Moller Gilbreth [Heppes] dies (age 83), Longview, Washington |
| 13 June | Daniel Bunker Gilbreth dies (age 88), West Caldwell, New Jersey | |
| 4 November | Ernestine Moller Gilbreth [Carey] dies (age 98), Fresno, California | |
| 2007 | 24 July | Robert Moller Gilbreth dies (age 87), Franklin, New Hampshire |
| 2015 | 30 November | Frederick Moller Gilbreth dies (age 99), Larchmont, New York |