In the aftermath, another of Isaac's families was discovered: he had a "wife", Mary Eastwood Walters, and daughter, Alice Eastwood Walters, in Lower Manhattan, who had adopted the surname Merritt.
Dôsledkom toho bolo, že bola objavená ďalšia jeho rodina: mal "manželku" Mary Eastwoodovú Waltersovú a dcéru Alice Eastwoodovú na dolnom Manhattane, ktoré obe prijali priezvisko Merrittová.