Tomas is three times older than his son, Delwyn, who is twice the age of his sister Sian.
Sian is 10 years younger than her other brother Rhys, who is half the age of his mother Alis.
Alis, in turn, is half the age of her own father Gareth and he is 10 years older than his wife Mel, Alis's mother.
So how old are they each if their combined age is 220 years?
A=The second digit of Gareth's age.
B=The two digits in Rhys's age added together.
C=Sian's age.
D=The sum of the four individual digits in Alis's and Delwyn's ages.
E=The second digit of Tomas's age.
F=The first digit of Mel's age minus the second digit.
Replace the letters in the following co-ords for the numerical answers you have found, in the usual manner: N51 49.ABC W003 00.DEF
The cache is a magnetic nano at a slightly historic item. Puzzle rating 2.5, cache rating 2.
You can validate your puzzle solution with certitude.
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And just for fun:
All characters and events depicted in this geocache puzzle are entirely fictitious. Any similarity to actual events or persons, living or dead, is purely coincidental.