Round 1: http://www.behindthename.com/bb/game/4708887
Round 2: http://www.behindthename.com/bb/game/4709222
Round 3: http://www.behindthename.com/bb/game/4709661
Round 4: http://www.behindthename.com/bb/game/4710354
DH: [1906]
DW: [1910]
DD: [1937]
-DH: [1929]
-DD: [1958]
--ex-DH: [1958]
--DD: [1984]
--DD: [1986]
--DS: [1990]-DS: [1959]
-DS: [1961]
-DD: [1963]
-DD: [1965]
DS: [1942]
-DW: [1944]
-DD: [1964]
-DS: [1968]
This round your family welcomes a grandson-in-law (though he eventually is divorced) and three great-grandchildren.
The grandson-in-law has the same FN as the older of his wife's brothers. He even goes by the same nickname! His MN is a filler and he has an Irish surname (http://surnames.behindthename.com/names/usage/irish).
Their oldest daughter's FN was trendy in the 80s (http://www.behindthename.com/top/list.php?region=united-states-decade&number=100&year=1980&sort=percent_change&display=). Her MN honors her mother, but it is not precisely the same as either of her mother's names.
Her younger sister's FN is a one syllable diminutive or short form of another name (http://www.behindthename.com/names/gender/feminine/syllables/1/relationship/diminutive,short). Her MN honors her great-grandmother.
Her brother's FN is a Biblical name used in several languages. His MN honors his grandfather.