John was ambitious and hard-working, he also was amorous and took a liking to William Anderson's sixteen-year-old daughter Agnes, the pair ran off to Liverpool together which cause a scandal in the village. William had a brother Henry, a cotton importer who lived in Liverpool and he tracked the couple down, persuaded them to get married and return to Bushmills as a respectable married couple, which they did. William Anderson's sons were involved in other businesses, so when he was ready to retire the Spade Mill was handed over to John and Agnes who kept the business running. They managed to secured contracts to supply spades and implements for work on the Victoria Channel when it was being created to improve Belfast harbour.