I've been wanting to do a NTNB for a while, so now that Evey's is finishing up, I thought I'd start mine. I also really liked ishild's idea and so I'm just going with one family as well.
DH: (1950)
DW: (1950)
DD1: (1972)
DS1: (1975)
DD2: (1978)
DS2: (1980)
The year is 1985. DH and DW are a couple in their mid-30's raising their four children on the family farm.
DH has an uncommon Biblical FN with a nickname that he goes by: https://www.behindthename.com/names/browse.php?type_gender=1&operator_gender=is&value_gender[]=masculine&type_usage=1&operator_usage=is&value_usage[]=biblical&type_popularity=1&operator_popularity=isnot&value_popularity[]=&yearoperator_popularity=is&rankoperator_popularity=is
His MN is after his father and so was popular in the 20's: https://www.behindthename.com/top/lists/united-states-decade/1920
The family surname is a colour.
DW has a name that was uncommon in 1950 when she was born but is much more common now. Her MN is a feminine form of a masculine name.
DD1 and DS1 both have first and middle names that were in the top 20 for the 70's. Incredibly, DD2's FN and MN are ranked between 21-40 of the same list:
https://www.behindthename.com/top/lists/united-states-decade/1970
DS2 was born in 1980. His first and middle ranked a little lower for the decade, between 50 and 69 on this list:
https://www.behindthename.com/top/lists/united-states-decade/1980
Enjoy =)