Ha !! Just a minute !

I am trying to trace the birth place and anything about the parents of Thomas Henry Ashworth b 1863 son of Dr and Mrs T Ashworth of Harrogate
Which is absolutely spot on, according to the death registration :
Death, Jun qtr 1936
Thomas Ashworth, age 73
Newton A., Vol 5b, page 175
But ......
I now have the marriage certificate for Thomas Ashworth and Florence Browett dated 10th Nov 1916 Thomas was 45
Therefore according to his marriage, Thomas claims to have been born in 1871 ??
I was so busy looking to see what Thomas's father was called, I didn't pay attention to his age. A couple of years we get used to, but seven/eight years surely isn't that usual once you reach the 1900's. Please tell me this isn't a typing mistake !

Pels.