BM is father's name, it gets carried on. so use that as family n

J BM UVW  =  his father name is BM, his mother family name is UVW. 

For his sons J/E/O BM XYZ, their father's name is BM, their mother's name is XYZ.  Notice that grandma's name UVW gets dropped.  Only their grandfather's names are in grandchildren's names.

所有跟帖： 

• 按这个推，那娃的姓名是自己first name, 爷爷姓，外公姓 -小玉米土豆- ♀ (0 bytes) () 10/19/2021 postreply 13:49:00

• 孙子孙女的姓都是爷爷+外公，孙子的孩子的姓只有爷爷+岳父，孙女的孩子的姓是公公+爷爷。 -柠檬椰子汁- ♂ (0 bytes) () 10/19/2021 postreply 13:53:15

• 有点意思，基本还是以父亲那边为主，妈妈那边两代后就姓不见了 -小玉米土豆- ♀ (0 bytes) () 10/19/2021 postreply 15:54:00

• 还有一点，表兄弟姐妹可以分清楚，而不是一大家子一个姓 -柠檬椰子汁- ♂ (0 bytes) () 10/19/2021 postreply 16:59:07