I am gonna have to bail on trying to use structures with an array inside and all that stuff.
I was unable to get a compile probably due to my misunderstanding of the purpose of "dataCountPerCycle" when defining "temperatures" as an integer.
The other issue was the "historicalData" attachment to "BoilerData" in defining the limit of the array with "maxCycleCount."
I understand things better since doing more reading on the subject and should be able to get a simple array working. Although the use of a structure has advantages over a simple array.