The London-Deer Creek Cemetery was originally located next to the Deer Creek Lutheran Church. It was decided that the land there was too wet and so the cemetery was moved a mile south into Iowa. Fourteen graves still remain behind the church. Portions of this cache can be found at an active cemetery so, as always, be respectful and no night caching.
Stage 1:
The coordinates should bring you to a grave for Ole and Hans. From here, skip one stone, moving north. You're looking for a literary grave.
A = The last digit of the death year.
B = The day of birth minus 4.
C = The number of the month born minus the number of the month died.
Stage 2:
These coordinates should bring you to a grave for Fader and Moder. Head north to the treeline to find their family members, Ida and Louis.
D = The years age difference between Ida and Louis.
E = 2nd digit of the year Louis died, minus the 2nd digit of the year Louis was born.
F = Last digit of the year Ida died.
The final may be found at N 43° 29.ABC W 93° 7.DEF