Large gaps between d.o.b. of a grandparent and one of his/her grandchildren.

[Redroger]

I have a pretty unusual situation myself. My father was 63 at the time of my birth. When we recently found out he was adopted, things got a little crazy. Turns out his biological father was 53 at the time of his birth. That makes for a whopping 116 years between my biological grandfather and me.

Puts me down from 2nd to 3rd at 112 years (1828-1940) My young brother still leads at 117 years (1828-1945)
There were no adoptions in ours, just a very late 2nd marriage for my grandfather at 66
My grandfather was 71 when dad was born and Dad was 41 for me and 46 for my brother.

[CelticAnnie]

I have a grandfather born in 1796 with his final grandson (who was my own grandfather) born in 1904, when grandson's father (who fathered 16 children in total) was 63!  So 108 years! 

[Redroger]

My paternal name bearing great grandfather was b1798, his wife b1791. My 2xggm b1765. Her father b1703.

[brigidmac]

My great grandfather b 1850 jakobstadt I'm descended from his eldest son b1870
But the youngest daughter was born 1906
I think his youngest grandchild was born in 1940

Two of his granddaughters lived to be over a 100

I also have a photo of my Scots great grandparents in their late 90's meeting my newborn  sister !

[Mobius]

My youngest brother was born 98 years after the birth of our oldest grandparent.  Our paternal grandfather was born in 1919 and my youngest brother in 2017.  Our father had children over a 49-year period with multiple women (I myself was born in the 90s).

[DianaCanada]

I have a relative who married a man 42 years her senior.  He was 80 when their only child was born and would have been 109 when, as far as I can tell, his only grandchild was born.

[Redroger]

My grandfather John Luffman was born 1828.i was b1940. My younger brother was b1945. 112years between my grandfather and myself. 117 years between him and my brother. A remarriage at 66 plus a latish (40+) marriage in the next generation makes a difference to the time line.

[coombs]

My ancestor born 1752 had a grandchild born 1860. John Boniface had his son George in 1794 and George wed his 2nd wife and they had their last child in 1860. George had his first child with his first wife in 1818 so 42 years between his eldest and youngest child. So the 2 half siblings were the same "generation" even if born 42 years apart, and the gap big enough for the 2 half siblings to be grandparent and grandchild.

[Redroger]

I have at least one instance in mother's tree of a nephew marrying his aunt.Then, as now illegal. He was the son of the oldest of 10 children. 20 years or so later his aunt was born at around the same time.How it was allowed in a small village is unbelievable.