Final answer:
Unable to provide an answer as the provided excerpts do not contain information about Stanley's great-great-grandfather's desires. Additional text referencing Stanley's ancestor is needed to determine the correct answer.
Step-by-step explanation:
Based on the provided excerpts, it is not possible to determine definitively what Stanley's great-great-grandfather wanted, as none of the selections directly mention Stanley's great-great-grandfather's ambitions or desires. To provide an accurate answer, we must have access to the relevant portion of the text that discusses Stanley's great-great-grandfather specifically.
Since we do not have enough context or direct references to Stanley's ancestor, we cannot ascertain whether he wanted to buy a small pig farm, to marry Myra, to become a pig farmer, or to become a famous inventor. More information from the text where Stanley's great-great-grandfather is mentioned would be required to accurately complete this sentence.