Stumbled across this marker while out on the On Your Bike series.
Thought a cache associated with this site might make an interesting detour for other geocachers following the same route.
Cache can be found at... S 34° 31.ABC 139° 47.DEF
After calculating the following from the sign at listed co-ordinates...
A - the last digit in the year that Edna died
B - the second digit in the month that Ruby died
C - the second digit in Ruby's age
D - the number of letters in the second word on the sign
E - the number of words on the second line
F - the number of letters in Ruby and Edna's surname
checksum 9 and 21