Tuhia he haere tonu mo tenei whitianga - I mahi a Hammond i tana mahi maina tuatahi hei tohunga motuhake mo te US Geological Survey 1879-1880 i Washington, DC. I hoki ia ki California i te tau 1881 ki te mahi mo te Senator George Hearst, te rangatira maina me te papa o William Randolph Hearst. I te tau 1882, i tonoa ia ki te whenua hoariri i Mexico, e tata ana ki Sonora, hei kaiwhakahaere o Minas Nuevas. I te wā ka puta he hurihanga
I te rerenga mai o te pā, ka whakawātea a Hammond i tōna whānau ki roto i tētahi whare iti, ā, ka whawhai atu ki ngā kaiwhawhai.