[to the [nth (generation)] generation]
0━┳
David E. Morrill &ca 1968 Shirley M. Bateman
┣━1━━
Neil David Morrill ca 1971
┣━2━━
Daniel Lawrence Morrill ca 1974
┣━3━━
Nathan Charles Morrill ca 1977
┗━4━━
Ben Nicholas Morrill ca 1981
[total][:] 4 后代 (6 [persons] [with] [spouses])