1871 - 1927 (55 years)
| Rolf Thomsen Michelsen, Sr. ^ | |
| B: | 15 May 1899 |
| NY | |
| D: | 9 Nov 1986 |
| Grace Phillips | |
| B: | 7 Mar 1903 |
| M: | 19 Jun 1934 |
| Westfield, Union, NJ | |
| D: | 27 Dec 1995 |
| Inez Tenden Michelsen, ^ | |
| B: | 11 Nov 1903 |
| Brooklyn, Kings, NY | |
| D: | Marbella, Spain |
| Thomas Townshind Sommerville Hoyer | |
| B: | 17 Apr 1900 |
| Oslo, Norway | |
| M: | 21 Jan 1930 |
| D: | Marbella, Spain |
| Konrad Meyer Michelsen, ^ | |
| B: | 29 Mar 1910 |
| NY | |
| D: | 19 Jul 1934 |
| Edna Crcem Ravage | |
| B: | Abt 1910 |
| D: | Yes, date unknown |
| Rasmus M. Michelsen, ^ | |
| B: | 19 Oct 1871 |
| Norway | |
| D: | 13 Mar 1927 |
| New York, New York, NY | |
| Beate Bernadine Thomson | |
| B: | 23 Sep 1872 |
| Norway | |
| M: | 1 Jan 1898 |
| Brooklyn, Kings, New York | |
| D: | 16 Apr 1970 |
