In 1718, at the behest of either Rector Samuel Andrew or the colony's Governor Gurdon Saltonstall, Cotton Mather contacted a successful businessman named Elihu Yale, who lived in Wales but had been born in Boston and whose father, David, had been one of the original settlers in New Haven, to ask him for financial help in constructing a new building for the college. Through the persuasion of Jeremiah Dummer, Yale, who had made a fortune through trade while living in Madras as a representative of the East India Company, donated nine bales of goods, which were sold for more than £560, a substantial sum at the time. Cotton Mather suggested that the school change its name to Yale College. Meanwhile, a Harvard graduate working in England convinced some 180 prominent intellectuals that they should donate books to Yale. The 1714 shipment of 500 books represented the best of modern English literature, science, philosophy and theology. It had a profound effect on intellectuals at Yale. Undergraduate Jonathan Edwards discovered John Locke's works and developed his original theology known as the "new divinity." In 1722 the Rector and six of his friends, who had a study group to discuss the new ideas, announced that they had given up Calvinism, become Arminians, and joined the Church of England. They were ordained in England and returned to the colonies as missionaries for the Anglican faith. Thomas Clapp became president in 1745, and struggled to return the college to Calvinist orthodoxy; but he did not close the library. Other students found Deist books in the library.

Answer this question, if possible (if impossible, reply "unanswerable"): What was Elihu Yale's father's nickname?
unanswerable