Anyone else with a completely mixed‑up family tree?

[WittyRubyPanda]

Hi all. I’ve realised recently that my family tree is so tangled that even explaining it feels like doing a puzzle. For example, two of my mum’s uncles are actually younger than she is. Younger uncles! And their children — who technically count as a generation above me — are younger than I am too. One of them was born while I was revising for my final exams.
It always makes me laugh how impossible it is to keep the “right” generational order when real life does its own thing.
So I’m genuinely curious:
Does anyone here have this kind of mixed‑up generational situation in their own family? Or do you know anyone who does?
Younger uncles or aunts? Cousins who should be older but aren’t? Relatives who belong to a “higher” generation but go to nursery?
Would love to hear your stories — the stranger, the better!

That really does sound complicated, and it must be a strange mix of emotions trying to piece it all together without being able to ask the one person who would have known for sure. The 1940s weren’t exactly a time when people talked openly about this kind of thing, so it’s not surprising that the truth got buried.
DNA can be incredibly helpful, but when relatives disagree with the results it makes everything even more confusing. Your theory about which brother it was sounds reasonable given the “half‑cousin” matches, even if the other side doesn’t want to accept it.
Family history can get messy, but you’re handling it with a lot of honesty and curiosity — which isn’t easy in situations like this.

DH has a sister 8 years older She and her eldest DD had DC fairly young. As a result MIL had great GC older than our DC (her GC). What I don't particularly like is our DC are treated like the generation below, like children, despite being nineteen and twenty one. Even their cousins treat them differently to each other because they're younger and similarly aged to their own DC. I was 32 and 34 when DC were born, so hardly old.
When MIL died recently she was our DC's last grandparent, whereas the GGC had a full set of grandparents and other GGP but I had to step in as it was upsetting to my DC, being treated differently.

Your family story is absolutely brilliant — it’s like generations decided to overlap just for fun. Having an uncle your age (and younger than your brother!) already makes for a great family anecdote, but then your grandad adding children around the world and giving you an aunt seven years younger than you really takes it to another level.
And the London part made me laugh — with millions of people to choose from, the way everyone in your circle keeps linking back to each other does feel like something straight out of a tiny 18th‑century village.
It must make family gatherings wonderfully entertaining though!

I really feel for your DC, because although my situation is the opposite, it caused similar discomfort. In my family, I ended up being much older than some of my mum’s cousins — almost a full generation older in age, even though in the family hierarchy they were treated as “the older generation.”
When I was younger, it honestly wasn’t a great feeling. In slightly more traditional families, people tend to give automatic authority or seniority to the older “generation,” even if those relatives are actually years younger. So I completely understand what you mean about the mismatch between age and the role people assign you.
Different direction, same awkward outcome. Family timelines can really twist themselves into knots.

When my mums brother got married in the late sixties both the bride and mother of the groom were pregnant 😀😀😀. That sort of thing would have been common enough over here in Ireland with larger families in the past. My aunt and uncle had nieces and nephews older and the same age as them. At my mums 21st there is photos of her with her niece and nephew and one year old sister. A good friend of ours was in the same class in school as her uncle. My aunt would be similar age to me so my cousins are more like nieces and nephews. At our toddler group recently there was a lovely woman who attended with her little boy and her mother in law with her two year old .

On my mothers side there are lots of similar aged aunts/uncles/nephews and nieces.

On my Dad’s side two brothers married two sisters… then the children of that marriage married each other! Very closely related! They produced children but the daughter was unable to have children and it was wondered later if it was due to genetics being so close.

I like to keep things in the family, I married my best friends ex boyfriend (she gave her blessing) and I am now related to two of my best friends due to marriage!

Yes my DH. His parents swapped partners with another couple. Both had kids before, after and in one case during (paternity is questionable). Mixes of full, half and step - yet you wouldn’t find a more disparate group of men possible. Then one son’s ex got together with another son….

This really made me smile — it’s amazing how often families end up with generations completely overlapping like this. And your examples feel very familiar to me, because my family is a bit the same. I’m older than some of my mum’s cousins, so the “generational roles” never quite lined up with the actual ages.

@WittyRubyPanda As you can see from this thread, it's very common!

My Dad married twice with a bit of gap, so there are 21 years between my oldest and youngest sisters. My oldest sister started her family at age 18 (her descendants did the same), so the two youngest sisters were aunts from birth. The youngest was late starting her family, so at one point I had a niece starting primary school while her cousin, my other niece, was already a grandmother.

My oldest sister was a grandmother at 37 and a great-grandmother at 55. She now has a total of 22 descendants over three generations, while the rest of us have only produced one generation each so far. It's all so skewed!

*The oldest of the that 3rd generation is 16 now -- who knows what will happen in the next couple of years!

DM’s family squeezed 3 generations into the same period of time that DF’s family had 2. It means that she has a son, nephew and cousin all born in the same month&year, and that there is 40 years between my youngest and eldest cousins. (OTOH, DH’s generation - all boys - were born with. 5 year period. Same on a both sides, sane 5 year period. All those cousins, then had all their own children within a 5 year period, same of both sides.

My uncle is 12 years (I think) younger than I am. I keep forgetting he's my uncle to be honest, I think of him more like a cousin.

My grandmother died and my grandad remarried a much younger woman, although her pregnancy in her 40s was a shock. Sadly my grandad died when my uncle was only 3.

I had 7 grandparents/ step-grandparents...it's all a complicated mess. We had to do our family trees for a counselling course I was on, I just kept quiet. Mine is so crazy.

My mum was born in the early 50s, her mother was born in the early 20s - then it gets a bit crazy; her father was born in 1874 and his father was born in 1820.

My mums grandfather (my great grandfather) born 1874 had a lot of siblings but only two survived childhood. One was younger and left for Liverpool and had children when she 20 (in about 1900). His older brother who took on the family farm had children in the 1890s.

It tends to be 25 to 30 on average per generation so this has led to some weird results on my mum's DNA matches (it makes it harder to track how matches fit into her tree as the generations are effectively out). She gets weird results like 2nd cousin 4 times removed which are really confusing to work out how they are related to her.

My mum's aunt born 1935 is still alive - her grandfather was born in 1820. This totally messes with my head as a concept!

You would expect a generation at
1820 - (my family 1820)
1850 - (my family 1874 - oldest sibling 1865, youngest 1880)
1880 - (oldest daughter born 1914 - youngest daughter born 1935! Oldest first cousin 1895)
1910 - (child of youngest daughter 1965. Oldest second cousin 1915)

So you can the generations slipped about 55 years from expectations at one point. My mum's great grandfather was born over 130 years before her! I've not seen many families where this gap is so large tbh.

But apparently this isn't that unusual for Irish ancestry. I was really surprised to find this out. What happened was due to the famine many men born around 1820 delayed marrying and starting a family until they had land - this was often after their parents had died or they'd emigrated and started out from scratch. There was a real fear of repeat and they wanted to ensure they had the ability to support their family. So you get a lot of 50 year old men marrying women around their mid 20s or so - and that's exactly what happened in my Mum's family. My great grandfather first went to the US, then Europe before moving to the UK for work.

The wide age range in your cousin group really resonates with me. On my mum’s side, the cousins aren’t in a single age band either. I’m actually older than many of my mum’s cousins — sometimes only by a few months, but in several cases by more than seventeen years. So that whole group ends up feeling much closer to my generation than hers.
And in a different branch of the family, one of my grandmother’s cousins was only two years older than me and we even overlapped at school, which shows how strangely the generations have stacked up.
Different patterns, but the same general outcome: the “cousin” label ends up covering people who belong to completely different age groups.

Your uncle being younger than you reminds me of how things work on my mum’s side as well. My mum was actually seven years older than her own uncle, and it’s carried on into my generation too — I’m fifteen years older than one of that uncle’s children, and more than seventeen years older than another. So the family titles don’t line up with age for us either.

I have an uncle on one side who is slightly younger than a cousin on the other side. They were both at my parents' wedding.

DH has an uncle who is only 10 years older than him.

I have cousins the same age as my niece and nephew.

My grandparents had great-grandchildren older than their youngest grandchildren.

Your examples really resonate. My mum also had an uncle who was younger than her — he was seven years younger, which always made the family roles feel a bit upside‑down. And in my generation it’s stretched even further, because I’m older than two of that uncle’s children by quite a long way. So I completely get how the usual labels don’t match the ages at all.

My family is the same. On my mum’s side, my great-grandparents also had great‑grandchildren who were older than some of their youngest grandchildren. In my case, one of their grandchildren is actually more than seventeen years younger than me — and I’m their great‑grandchild. So the generations overlap in exactly the same way.