I just realized that most of the parents in Klasky-Csupo cartoons were Baby Boomers. Grandpa Lou most certainly was a member of the Greatest Generation (as he fought in World War II which is associated with that generation)
Rugrats/All Grown Up!
Stu drives a 1971 Citroen DS (and most of the parents drive 1970s and 1980s models of cars, updating to the early 1990s later on)
Didi attended a Bicentennial themed Junior Prom in High School “Junior Prom”
Stu was 19 during the Disco era and has a disco suit that shows up in “Stu Gets a Job”, “Garage Sale”, and “All Growed Up”
Stu was 35 years old in 1992-1993 according to Grandpa Lou “The Legend of Satchmo”
It’s implied that Stu and Didi might have dealt with fertility issues and Tommy was born premature (given how it was a surprise when Didi found herself pregnant with Dil), so it’s fitting Stu and Didi were in their thirties.
Betty is clearly a 2nd Wave Feminist (the 1960s and 1970s) while 1990s young feminists looked like this or this.
Betty’s favorite movie is Chitty Chitty Bang Bang
Charlotte (and Drew to a lesser extent) is clearly a Yuppie in the Helen Morgendorffer mold
Drew probably bought The Preppy Handbook
Charlotte has black and white pictures of her as a baby and toddler (mostly 1950s and 1960s)
Drew and Stu were babies in 1959. “Sour Pickles”
Chas’s Bachelor look was utterly psychedelic with a lava lamp and shag carpeting “Chuckie’s Bachelor Pad”
Chas also has black and white photos.
Lou has black and white film footage of Stu as a Cub Scout.
Flashbacks and photos have shown Melinda Finster to look like a updated (for the early 90s and late 80s) Karen Wheeler
Lucy and Randy Carmichael clearly had their prom in the 1970s (afros, wide lapels, long hair and sideburns, floral spaghetti strap gowns, some leftover hairdos from the 1960s, a disco ball, platform shoes, and Lucy wore a documented-by-me prom look at the time) “Junior Prom”
Betty’s Wedding gown was utterly 80s “Runaround Susie”
The whole series was a huge discussion and display of the differences in parenting styles from those of the Greatest Generation and their own parents.
Betty and Didi liked a group similar to The Mamas and the Papas/The Beatles/Rolling Stones/The Doors “Famous Babies”
Lucy Carmichael turned away from a Blues singing career because “there were a lot of blues singers and not a lot women getting scholarships to college” which likely referred to gender discrimination in education and scholarships (pre-Title IX)with a side of racial discrimination “Runaround Susie”
Similar to Drew, Lucy’s style is very Preppy with a polo shirt look with the Lacoste alligator.
Lucy sang in Church with a lot of late 1950s and 1960s looks (including the hats, now the flashback of Lucy being accepted into Harvard Medical School adds a bit of ripple as her look is pretty 1980s and was before she likely married Randy) “Kwanzaa”
In general the fight for women to apply to and be accepted by Ivy League medicals schools had a fraught history.
Didi and Howard have the stack perms well known in the 1970s and 1980s. Carried more into the 1990s by the cast of The Nanny and the SNL “Coffee Talk” sketches
Rocket Power
Ray drives a 1962 Mercury Woodie Wagon and is clearly nostalgic about his youth in the 1960s and 1970s.
Reggie and Ottos’ late mother Danielle was seen with a 1960s style bouffant in the flashbacks.
Tito and Ray were in a movie as sharks for a surf film starring a star who really didn’t surf or swim, which was an expy of beach movies starring Frankie Avalon and Annette Funicello from 1963-1965. “The Wrath of Don Lightning”
Plenty of flashbacks also showed them with long 1970s hair and the ski suits of that decade.
The Wild Thornberries
Likely in the episode “Hello Dolphin”, Marianne told Nigel that when she was a teenager she was traumatized by a shark movie where a girl that looks like her got attacked, likely Jaws and Chrissy, which came out in 1975. This could likely mark Marianne as being born in the 1950s or early 1960s.
Nigel has been doing nature documentaries in the 1970s as a teenager judging by the film and hair. “Forget Me Not”, same with Marianne he could have been born in the 1950s or 1960s.
As Told By Ginger
Lois Foutley did dress as a Madonna wannabe as a young women, but rather than marking her as a 1980s teen, she’d might as well be around Madonna’s age (b. 1958) “Losing Nana Bishop”
Lois’s appearance in her graduation photo on the mantel and when Ginger was young could be a reference to how her voice actress, Laraine Newman, appeared in the late 1970s and early 1980s.
Lois spent one summer in Greenwich Village after her sophomore year of nursing school where the beatniks were gone and there were Korean delis and accountants, which could refer to the late 1970s and the 1980s and climbed up the stairs of the Statue of Liberty in loose side platforms “The Nurse’s Strike”
Lois has a similar hairdo of a stacked perm to Didi and Howard.
Jonas Foutley drives a truck that could have been sold in the 1970s and 1980s.
Dr. Dave drives sports cars with luxury labels from the 1980s.
Diane Francis’s look in her old photo closely resembles styles from the 1970s or early 80s (as she went to college with Dr. Dave). “The Wedding Frame”
Lois’s Foutley’s ski jacket for Ginger resembles a multitude of jackets from the 1960s, 1970s, and early 1980s. “Stealing First”
Macie’s parents clearly have a look of 1980s professionals and 1990s working women (Dr. Bobby though has the look of Ted Chaough from Mad Men).