Tuhia he tohutoro mō tēnei wāhanga - I whānau a Hobart ki Paterson, New Jersey, a, i tipu ake, ko ia te tamahine a te roia rongonui a Socrates Tuttle me tana wahine, a Jane Winters. I marenatia ia ki a Garret Hobart i Paterson i te Hōngongoi 21, 1869, i te timatanga o tana mahi hei roia me te kaitōrangapū. E whā ā rāua tamariki, tokorua i mate i te tamarikitanga. Ko ētahi atu tokorua ko Garret Jr. rāua ko Fannie, i mate i te tau 1895. I te tau 1896 i kowhiria tana tahu hei Perehitini Tuarua o te United States a ka neke te whanau ki Washington, DC. I a ia e noho ana hei Wahine Tuarua o te United States, he maha nga wa i mahi a Hobart hei kaihauturu o te Whare Maama na te mea ko te Wahine Tuatahi, Ida Saxton McKinley, i mate i te mate pukupuku. I mate te Perehitini Tuarua a Hobart i te ngoikoretanga o te ngakau i te Noema 21, 1899. Whai muri i tona matenga, ka hoki ia ki Paterson ka uru ki nga mahi a te hapori. He hoa tata a ia ki a Mrs. McKinley, ā, ka tere atu ki Buffalo, i Niu Ioka, ki te tautoko i a ia i te wā i patua ai a Peresideni McKinley
i te marama o Hepetema 1901.