[to the [nth (generation)] generation]
0━┳
Clive P. M Smith &1964 Valerie Anne Scudds ca 1944
┣━1a─
Sharen C. Smith 1965 &1991 Trevor Cook
┃ 1b─
Sharen C. Smith &1996 Alan R. Berkeley
┗━2━━
Richard Charles Smith ca 1967 &ca 1998 ------ ------
[total][:] 2 后代 (7 [persons] [with] [spouses])