"You must call me 'Thaddeus,' Hazel Jones. Better yet, 'Thad'. 'Mr. Gallagher' is for servants and other hirelings." When Hazel made no reply, Thaddeus learned toward her suggestively: "Will you call me 'Thad'? It's very like 'Chet', - eh? Almost no one calls me 'Thad' any longer, my old friends are falling away - every season, like dying leaves."
Source: wiktionary